Dangerous Heat Wave for the West; Severe Storms and Heavy Rain for Midwest and Plains

Severe storms and heavy rains are likely in the Upper Midwest and Plains through this evening. A long duration heat wave will build across the West through next week with excessive heat watches/warnings in effect from the Southwest to Northwest. TS Josephine is forecast to pass well north of Puerto Rico and the Virgin Islands while TS Kyle is forecast to move quickly away from land this weekend. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

74°F

23°C

Humidity 88%
Wind Speed NW 5 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 14 Aug 11:52 pm EDT
Extended Forecast for

Chantilly VA

  • Overnight

    Overnight: A chance of showers and thunderstorms.  Cloudy, with a low around 71. Northeast wind 3 to 5 mph.  Chance of precipitation is 30%.

    Chance
    Showers

    Low: 71 °F

  • Saturday

    Saturday: Scattered showers.  Cloudy, with a high near 79. East wind 6 to 8 mph.  Chance of precipitation is 40%.

    Scattered
    Showers

    High: 79 °F

  • Saturday
    Night

    Saturday Night: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain.  Cloudy, with a low around 66. East wind around 8 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Heavy Rain

    Low: 66 °F

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms after 2pm. Some of the storms could produce heavy rain.  Patchy fog before 2pm.  Otherwise, cloudy, with a high near 74. Northeast wind around 9 mph.  Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Heavy Rain
    and Patchy
    Fog

    High: 74 °F

  • Sunday
    Night

    Sunday Night: Scattered showers, mainly before 2am.  Mostly cloudy, with a low around 64. North wind around 6 mph becoming calm  after midnight.  Chance of precipitation is 30%.

    Scattered
    Showers

    Low: 64 °F

  • Monday

    Monday: Isolated showers before 8am, then a slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 85. Chance of precipitation is 20%.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 85 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 65.

    Mostly Clear

    Low: 65 °F

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    Sunny

    High: 85 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 66.

    Partly Cloudy

    Low: 66 °F

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Cloudy, with a low around 71. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
Scattered showers. Cloudy, with a high near 79. East wind 6 to 8 mph. Chance of precipitation is 40%.
Saturday Night
Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rain. Cloudy, with a low around 66. East wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 2pm, then scattered showers and thunderstorms after 2pm. Some of the storms could produce heavy rain. Patchy fog before 2pm. Otherwise, cloudy, with a high near 74. Northeast wind around 9 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Scattered showers, mainly before 2am. Mostly cloudy, with a low around 64. North wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Monday
Isolated showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 68.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Chantilly VA
 38.88°N 77.4°W (Elev. 358 ft)
10:42 pm EDT Aug 14, 2020
12am EDT Aug 15, 2020-6pm EDT Aug 20, 2020
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database