KIAD 142352Z 00000KT 10SM FEW120 02/M13 A3058 RMK AO2 SLP358 T00171128 10056 20006 53001 $= KIAD 150052Z 14003KT 10SM FEW120 M01/M11 A3058 RMK AO2 SLP360 T10111106 $= KIAD 150152Z 08004KT 10SM SCT120 M01/M09 A3058 RMK AO2 SLP359 T10111089 $= KIAD 150252Z 14003KT 10SM CLR 01/M11 A3056 RMK AO2 SLP352 T00111111 58005 $= KIAD 150252Z COR 14003KT 10SM BKN140 01/M11 A3056 RMK AO2 SLP352 T00111111 58005 $= KIAD 150352Z 13004KT 10SM BKN200 01/M12 A3053 RMK AO2 SLP341 T00111117 $= KIAD 150452Z 15003KT 10SM BKN150 01/M12 A3052 RMK AO2 SLP339 T00061117 400561022 $= KIAD 150552Z 15005KT 10SM OVC130 01/M11 A3051 RMK AO2 SLP333 T00111106 10017 21022 56018 $= KIAD 150652Z 16004KT 10SM BKN120 01/M09 A3051 RMK AO2 SLP332 T00111089 $= KIAD 150752Z 13004KT 10SM OVC100 01/M08 A3048 RMK AO2 SLP325 T00111078 $= KIAD 150852Z 14004KT 10SM OVC100 01/M08 A3046 RMK AO2 SLP317 T00111078 58016 $= KIAD 150952Z 15004KT 10SM OVC110 01/M08 A3046 RMK AO2 SLP318 T00111078 $= KIAD 151052Z 16005KT 10SM OVC110 01/M07 A3044 RMK AO2 SLP309 T00111072 $= KIAD 151152Z 15006KT 10SM OVC100 01/M07 A3042 RMK AO2 SLP302 T00111067 10011 20011 58015 $= KIAD 151252Z 16007KT 10SM OVC100 01/M06 A3040 RMK AO2 SLP297 T00111061 $= KIAD 151352Z 18008KT 10SM BKN070 OVC090 02/M06 A3039 RMK AO2 SLP295 T00221061 $= KIAD 151452Z 18006KT 10SM OVC075 03/M06 A3038 RMK AO2 SLP291 T00281061 56011 $= KIAD 151552Z 17007KT 10SM OVC100 03/M06 A3034 RMK AO2 SLP277 T00331056 $= KIAD 151652Z 16007KT 10SM OVC090 04/M06 A3030 RMK AO2 PRESFR SLP262 T00391056 $= KIAD 151752Z 16010KT 10SM OVC075 04/M05 A3024 RMK AO2 PRESFR SLP242 T00441050 10044 20011 58048 $= KIAD 151807Z 16008KT 10SM -RA BKN055 OVC080 04/M04 A3023 RMK AO2 RAB00 P0000 T00391039 $= KIAD 151826Z 17008KT 7SM -RA BKN055 OVC080 03/M03 A3020 RMK AO2 RAB00 PRESFR P0001 T00281028 $= KIAD 151852Z 16008G16KT 6SM -RA FEW040 BKN055 OVC075 02/M01 A3018 RMK AO2 RAB00 SLP221 P0003 T00221011 $= KIAD 151952Z 17006KT 5SM -RA BR FEW012 BKN040 OVC080 02/M01 A3016 RMK AO2 SLP215 P0007 T00171006 $= KIAD 152029Z 16005KT 6SM -RA BR SCT012 BKN027 OVC075 02/00 A3013 RMK AO2 P0005 T00170000 $= KIAD 152040Z 17006KT 7SM -RA FEW008 BKN012 OVC080 02/00 A3013 RMK AO2 P0005 T00170000 $= KIAD 152052Z 16007KT 6SM -RA BR BKN010 BKN026 OVC040 02/00 A3012 RMK AO2 SLP202 P0007 60017 T00170000 56040 $= KIAD 152134Z 16008KT 5SM -RA BR SCT008 BKN012 OVC042 01/00 A3009 RMK AO2 P0005 T00110000 $= KIAD 152142Z 16007KT 4SM -RA BR BKN008 BKN013 OVC032 01/00 A3009 RMK AO2 P0006 T00110000 $= KIAD 152152Z 16009KT 5SM -RA BR BKN008 BKN038 OVC070 01/00 A3008 RMK AO2 SLP188 P0007 T00110000 $= KIAD 152252Z 17010KT 9SM -RA OVC007 02/00 A3003 RMK AO2 PRESFR SLP171 P0006 T00170000 $=
Decoded Surface Observations
The weather observed at WASHINGTON DC, VA (KIAD) at 06:52 PM EST was: The skies were mostly clear. Temperature: 35F ( 2C) Dewpoint: 9F (-13C) Relative Humidity: 33% Winds from the CLM(CLM degs) at 0 mph. Pressure: 1035.8 millibars. Altimeter:30.58 inches of mercury. The prevailing visibility was 10 miles. The maximum temperature in the past 6 hours was 42F. The minimum temperature in the past 6 hours was 33F. The weather observed at WASHINGTON DC, VA (KIAD) at 07:52 PM EST was: The skies were mostly clear. Temperature: 30F ( -1C) Dewpoint: 13F (-11C) Relative Humidity: 48% Winds from the SE (140 degs) at 3 mph. Pressure: 1036.0 millibars. Altimeter:30.58 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 08:52 PM EST was: The skies were partly cloudy. Temperature: 30F ( -1C) Dewpoint: 16F ( -9C) Relative Humidity: 55% Winds from the E (080 degs) at 5 mph. Pressure: 1035.9 millibars. Altimeter:30.58 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 09:52 PM EST was: The skies were clear. Temperature: 34F ( 1C) Dewpoint: 12F (-11C) Relative Humidity: 40% Winds from the SE (140 degs) at 3 mph. Pressure: 1035.2 millibars. Altimeter:30.56 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 09:52 PM EST was: The skies were mostly cloudy. Temperature: 34F ( 1C) Dewpoint: 12F (-11C) Relative Humidity: 40% Winds from the SE (140 degs) at 3 mph. Pressure: 1035.2 millibars. Altimeter:30.56 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 10:52 PM EST was: The skies were mostly cloudy. Temperature: 34F ( 1C) Dewpoint: 11F (-12C) Relative Humidity: 38% Winds from the SE (130 degs) at 5 mph. Pressure: 1034.1 millibars. Altimeter:30.53 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 11:52 PM EST was: The skies were mostly cloudy. Temperature: 33F ( 1C) Dewpoint: 11F (-12C) Relative Humidity: 39% Winds from the SE (150 degs) at 3 mph. Pressure: 1033.9 millibars. Altimeter:30.52 inches of mercury. The prevailing visibility was 10 miles. The maximum temperature in the past 24 hours was 42F. The minimum temperature in the past 24 hours was 28F. The weather observed at WASHINGTON DC, VA (KIAD) at 12:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 13F (-11C) Relative Humidity: 41% Winds from the SE (150 degs) at 6 mph. Pressure: 1033.3 millibars. Altimeter:30.51 inches of mercury. The prevailing visibility was 10 miles. The maximum temperature in the past 6 hours was 35F. The minimum temperature in the past 6 hours was 28F. The weather observed at WASHINGTON DC, VA (KIAD) at 01:52 AM EST was: The skies were mostly cloudy. Temperature: 34F ( 1C) Dewpoint: 16F ( -9C) Relative Humidity: 47% Winds from the SSE(160 degs) at 5 mph. Pressure: 1033.2 millibars. Altimeter:30.51 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 02:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 18F ( -8C) Relative Humidity: 51% Winds from the SE (130 degs) at 5 mph. Pressure: 1032.5 millibars. Altimeter:30.48 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 03:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 18F ( -8C) Relative Humidity: 51% Winds from the SE (140 degs) at 5 mph. Pressure: 1031.7 millibars. Altimeter:30.46 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 04:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 18F ( -8C) Relative Humidity: 51% Winds from the SE (150 degs) at 5 mph. Pressure: 1031.8 millibars. Altimeter:30.46 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 05:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 19F ( -7C) Relative Humidity: 54% Winds from the SSE(160 degs) at 6 mph. Pressure: 1030.9 millibars. Altimeter:30.44 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 06:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 20F ( -7C) Relative Humidity: 56% Winds from the SE (150 degs) at 7 mph. Pressure: 1030.2 millibars. Altimeter:30.42 inches of mercury. The prevailing visibility was 10 miles. The maximum temperature in the past 6 hours was 34F. The minimum temperature in the past 6 hours was 34F. The weather observed at WASHINGTON DC, VA (KIAD) at 07:52 AM EST was: The skies were cloudy. Temperature: 34F ( 1C) Dewpoint: 21F ( -6C) Relative Humidity: 59% Winds from the SSE(160 degs) at 8 mph. Pressure: 1029.7 millibars. Altimeter:30.40 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 08:52 AM EST was: The skies were cloudy. Temperature: 36F ( 2C) Dewpoint: 21F ( -6C) Relative Humidity: 54% Winds from the S (180 degs) at 9 mph. Pressure: 1029.5 millibars. Altimeter:30.39 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 09:52 AM EST was: The skies were cloudy. Temperature: 37F ( 3C) Dewpoint: 21F ( -6C) Relative Humidity: 52% Winds from the S (180 degs) at 7 mph. Pressure: 1029.1 millibars. Altimeter:30.38 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 10:52 AM EST was: The skies were cloudy. Temperature: 38F ( 3C) Dewpoint: 22F ( -6C) Relative Humidity: 52% Winds from the S (170 degs) at 8 mph. Pressure: 1027.7 millibars. Altimeter:30.34 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 11:52 AM EST was: The skies were cloudy. Temperature: 39F ( 4C) Dewpoint: 22F ( -6C) Relative Humidity: 50% Winds from the SSE(160 degs) at 8 mph. Pressure: 1026.2 millibars. Altimeter:30.30 inches of mercury. The prevailing visibility was 10 miles. The weather observed at WASHINGTON DC, VA (KIAD) at 12:52 PM EST was: The skies were cloudy. Temperature: 40F ( 4C) Dewpoint: 23F ( -5C) Relative Humidity: 50% Winds from the SSE(160 degs) at 12 mph. Pressure: 1024.2 millibars. Altimeter:30.24 inches of mercury. The prevailing visibility was 10 miles. The maximum temperature in the past 6 hours was 40F. The minimum temperature in the past 6 hours was 34F. The weather observed at WASHINGTON DC, VA (KIAD) at 01:07 PM EST was: The skies were cloudy. The weather reported was light rain. Temperature: 39F ( 4C) Dewpoint: 25F ( -4C) Relative Humidity: 57% Winds from the SSE(160 degs) at 9 mph. Altimeter:30.23 inches of mercury. The prevailing visibility was 10 miles. There has been 0.00 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 01:26 PM EST was: The skies were cloudy. The weather reported was light rain. Temperature: 37F ( 3C) Dewpoint: 27F ( -3C) Relative Humidity: 67% Winds from the S (170 degs) at 9 mph. Altimeter:30.20 inches of mercury. The prevailing visibility was 7 miles. There has been 0.01 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 01:52 PM EST was: The skies were cloudy. The weather reported was light rain. Temperature: 36F ( 2C) Dewpoint: 30F ( -1C) Relative Humidity: 79% Winds from the SSE(160 degs) at 9 mph. Pressure: 1022.1 millibars. Altimeter:30.18 inches of mercury. The prevailing visibility was 6 miles. There has been 0.03 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 02:52 PM EST was: The skies were cloudy. The weather reported was light rain and fog. Temperature: 35F ( 2C) Dewpoint: 31F ( -1C) Relative Humidity: 85% Winds from the S (170 degs) at 7 mph. Pressure: 1021.5 millibars. Altimeter:30.16 inches of mercury. The prevailing visibility was 5 miles. There has been 0.07 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 03:29 PM EST was: The skies were cloudy. The weather reported was light rain and fog. Temperature: 35F ( 2C) Dewpoint: 32F ( 0C) Relative Humidity: 88% Winds from the SSE(160 degs) at 6 mph. Altimeter:30.13 inches of mercury. The prevailing visibility was 6 miles. There has been 0.05 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 03:40 PM EST was: The skies were cloudy. The weather reported was light rain. Temperature: 35F ( 2C) Dewpoint: 32F ( 0C) Relative Humidity: 88% Winds from the S (170 degs) at 7 mph. Altimeter:30.13 inches of mercury. The prevailing visibility was 7 miles. There has been 0.05 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 03:52 PM EST was: The skies were cloudy. The weather reported was light rain and fog. Temperature: 35F ( 2C) Dewpoint: 32F ( 0C) Relative Humidity: 88% Winds from the SSE(160 degs) at 8 mph. Pressure: 1020.2 millibars. Altimeter:30.12 inches of mercury. The prevailing visibility was 6 miles. There has been 0.07 inches of precipitation in the past hour. There has been 0.17 inches of precipitation in the past 6 hours. The weather observed at WASHINGTON DC, VA (KIAD) at 04:34 PM EST was: The skies were cloudy. The weather reported was light rain and fog. Temperature: 34F ( 1C) Dewpoint: 32F ( 0C) Relative Humidity: 92% Winds from the SSE(160 degs) at 9 mph. Altimeter:30.09 inches of mercury. The prevailing visibility was 5 miles. There has been 0.05 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 04:42 PM EST was: The skies were cloudy. The weather reported was light rain and fog. Temperature: 34F ( 1C) Dewpoint: 32F ( 0C) Relative Humidity: 92% Winds from the SSE(160 degs) at 8 mph. Altimeter:30.09 inches of mercury. The prevailing visibility was 4 miles. There has been 0.06 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 04:52 PM EST was: The skies were cloudy. The weather reported was light rain and fog. Temperature: 34F ( 1C) Dewpoint: 32F ( 0C) Relative Humidity: 92% Winds from the SSE(160 degs) at 10 mph. Pressure: 1018.8 millibars. Altimeter:30.08 inches of mercury. The prevailing visibility was 5 miles. There has been 0.07 inches of precipitation in the past hour. The weather observed at WASHINGTON DC, VA (KIAD) at 05:52 PM EST was: The skies were cloudy. The weather reported was light rain. Temperature: 35F ( 2C) Dewpoint: 32F ( 0C) Relative Humidity: 88% Winds from the S (170 degs) at 12 mph. Pressure: 1017.1 millibars. Altimeter:30.03 inches of mercury. The prevailing visibility was 9 miles. There has been 0.06 inches of precipitation in the past hour.
Short Range Forecast
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Zone Forecast
VAZ053-160300- Fairfax- Including the cities of Reston, Herndon, Annandale, Centreville, Chantilly, McLean, and Franconia 633 PM EST Sat Feb 15 2025 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING... .TONIGHT...Rain this evening, then a chance of rain with areas of drizzle after midnight. Areas of fog. Lows in the upper 30s. South winds 5 to 10 mph. Chance of rain near 100 percent. .SUNDAY...Areas of fog in the morning. Showers with possible drizzle and thunderstorms in the morning, then showers likely in the afternoon. Windy, warmer with highs in the lower 60s. South winds 10 to 15 mph with gusts up to 30 mph, increasing to southwest 20 to 30 mph with gusts up to 55 mph in the afternoon. Chance of rain near 100 percent. .SUNDAY NIGHT...Mostly clear with a slight chance of rain showers in the evening, then partly cloudy after midnight. Breezy with lows in the upper 20s. West winds 20 to 25 mph with gusts up to 45 mph. Chance of rain 20 percent. .WASHINGTONS BIRTHDAY...Sunny, cooler with highs in the upper 30s. West winds 15 to 20 mph with gusts up to 40 mph. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 20s. Northwest winds 10 to 15 mph. .TUESDAY...Mostly sunny. Highs in the upper 30s. .TUESDAY NIGHT...Mostly cloudy. Lows around 20. .WEDNESDAY...Snow likely. Highs in the upper 20s. Chance of snow 60 percent. .WEDNESDAY NIGHT...Snow likely. Lows in the lower 20s. Chance of snow 70 percent. .THURSDAY...Snow likely. Highs in the lower 30s. Chance of snow 70 percent. .THURSDAY NIGHT...Partly cloudy. Lows around 20. .FRIDAY...Sunny. Highs in the mid 30s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 20s. .SATURDAY...Mostly sunny. Highs in the upper 30s.
State Forecast
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State Forecast Discussion
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GFS Short-Range Model Output Statistics (MOS) Forecast
KIAD GFS MOS GUIDANCE 2/15/2025 1800 UTC DT /FEB 16 /FEB 17 /FEB 18 HR 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 12 18 N/X 37 63 28 39 21 TMP 37 37 38 41 44 49 56 59 52 41 36 32 29 32 35 37 33 29 27 23 32 DPT 33 35 37 41 44 49 46 41 30 21 17 14 12 10 9 9 10 11 10 8 5 CLD OV OV OV OV OV OV OV SC SC BK SC FW CL CL FW BK BK SC FW BK OV WDR 17 17 16 18 17 18 21 27 29 29 29 29 30 30 29 30 30 31 31 32 31 WSP 06 03 04 06 09 08 16 27 24 24 22 21 19 19 16 18 13 11 10 11 12 P06 84 33 79 42 2 0 0 2 1 0 8 P12 88 91 2 2 8 Q06 2 0 3 1 0 0 0 0 0 0 0 Q12 2 3 0 0 0 T06 0/ 1 1/ 1 1/11 3/13 0/ 6 0/ 5 0/10 0/ 0 1/13 0/ 3 T12 1/11 3/21 0/14 1/13 0/ 8 POZ 5 2 1 3 4 2 1 0 0 0 0 2 4 2 1 0 0 2 4 4 2 POS 16 11 0 10 1 0 0 7 47 79 83 91 96 97 91 96 89 96 96 96 96 TYP R R R R R R R R S S S S S S S S S S S S S SNW 0 0 CIG 3 3 2 2 2 3 6 8 8 8 8 8 8 8 8 8 8 8 8 8 7 VIS 5 4 2 3 4 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 OBV BR BR BR BR BR BR N N N N N N N N N N N N N N N
GFS Long-Range Model Output Statistics (MOS) Forecast
KIAD GFSX MOS GUIDANCE 2/15/2025 1200 UTC FHR 24 36| 48 60| 72 84| 96 108|120 132|144 156|168 180|192 SUN 16| MON 17| TUE 18| WED 19| THU 20| FRI 21| SAT 22|SUN CLIMO N/X 38 58| 27 38| 22 37| 21 28| 22 34| 22 37| 21 39| 23 25 48 TMP 45 46| 29 32| 24 32| 24 27| 25 30| 24 33| 24 34| 26 DPT 44 28| 12 8| 9 11| 10 16| 19 15| 16 18| 16 16| 16 CLD OV OV| CL CL| PC PC| OV OV| OV OV| CL PC| OV PC| PC WND 10 29| 25 20| 13 13| 12 7| 9 21| 17 12| 15 18| 11 P12 100 91| 1 4| 6 13| 20 72| 79 36| 12 13| 25 15| 8 22 22 P24 100| 12| 13| 81| 82| 20| 31| 34 Q12 3 3| 0 0| 0 0| 0 3| 4 1| 0 0| | Q24 4| 0| 0| 3| 4| 0| | T12 1 3| 0 0| 1 1| 1 1| 1 1| 0 1| 1 1| 0 T24 | 4 | 2 | 1 | 1 | 2 | 1 | 2 PZP 2 0| 0 2| 2 5| 8 7| 15 5| 10 8| 11 7| 9 PSN 2 7| 63 98| 96 91| 84 86| 80 88| 80 77| 74 73| 68 PRS 3 7| 20 0| 2 3| 5 2| 3 1| 2 3| 3 3| 4 TYP R R| S S| S S| S S| S S| S S| S S| S SNW 0| 0| 0| 4| 8| 0| |
NGM Model Output Statistics (MOS) Forecast
Climatological Summary
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Watch and Warning Statment
Sorry no data found for iad Make sure iad is a valid station You might need to specify a nearby major city or it could be THERE ARE NO WATCHES OR WARNINGS for iad Try Again
Park/Ski Recreation Report/Forecast
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