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Severe Thunderstorms over the Plains, Heavy Rain Threat Continues over Portions of the Mississippi Valley

Heavy rainfall with localized flooding will remain possible over portions of the Mississippi Valley and the Plains through midweek. In addition, severe thunderstorms will be possible over the southern and central Plains. Some of the storms could contain damaging winds and large hail. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

86°F

30°C

Humidity 72%
Wind Speed S 8 mph
Barometer 29.99 in (1015.3 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Aug 12:52 pm EDT
Extended Forecast for

Fairfax VA

  • This
    Afternoon

    This Afternoon: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 89. South wind 6 to 8 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    High: 89 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 75. South wind around 7 mph.  Chance of precipitation is 30%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 75 °F

  • Friday

    Friday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 91. Heat index values as high as 101. South wind 7 to 9 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers then
    T-storms
    Likely

    High: 91 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 6 mph becoming light and variable.  Chance of precipitation is 40%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 70 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 88. Northwest wind 5 to 8 mph.

    Mostly Sunny

    High: 88 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 69.

    Partly Cloudy

    Low: 69 °F

  • Sunday

    Sunday: Sunny, with a high near 87.

    Sunny

    High: 87 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 70.

    Partly Cloudy

    Low: 70 °F

  • Monday

    Monday: Mostly sunny, with a high near 88.

    Mostly Sunny

    High: 88 °F

Detailed Forecast

This Afternoon
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. South wind 6 to 8 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. South wind around 7 mph. Chance of precipitation is 30%.
Friday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 91. Heat index values as high as 101. South wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 6 mph becoming light and variable. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 88. Northwest wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 70.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Click Map For Forecast
Point Forecast:
Fairfax VA
 38.85°N 77.32°W (Elev. 413 ft)
1:28 pm EDT Aug 17, 2017
1pm EDT Aug 17, 2017-6pm EDT Aug 23, 2017
 
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