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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 >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Partly Cloudy

88°F

31°C

Humidity 73%
Wind Speed S 12 mph
Barometer 29.95 in (1014.2 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 17 Aug 2:52 pm EDT
Extended Forecast for

Mc Lean VA

  • This
    Afternoon

    This Afternoon: A chance of showers and thunderstorms.  Partly sunny, with a high near 90. South wind around 8 mph.  Chance of precipitation is 30%.

    Chance
    T-storms

    High: 90 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 75. South wind around 7 mph.  Chance of precipitation is 30%.

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

    Low: 75 °F

  • Friday

    Friday: A slight chance of showers, then showers and thunderstorms likely after 11am.  Patchy fog before 11am.  Otherwise, mostly cloudy, with a high near 91. Heat index values as high as 101. South wind 6 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 and
    Patchy Fog
    then T-storms
    Likely

    High: 91 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm.  Patchy fog after 5am.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm  after midnight.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    T-storms
    Likely then
    Chance
    Showers and
    Patchy Fog

    Low: 70 °F

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 88. Northwest wind 3 to 8 mph.

    Patchy Fog
    then Mostly
    Sunny

    High: 88 °F

  • Saturday
    Night

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

    Partly Cloudy

    Low: 70 °F

  • Sunday

    Sunday: Sunny, with a high near 88.

    Sunny

    High: 88 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 71.

    Partly Cloudy

    Low: 71 °F

  • Monday

    Monday: Mostly sunny, with a high near 88.

    Mostly Sunny

    High: 88 °F

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 90. South wind around 8 mph. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 75. South wind around 7 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers, then showers and thunderstorms likely after 11am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 91. Heat index values as high as 101. South wind 6 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
Showers and thunderstorms likely, mainly before 8pm. Patchy fog after 5am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Northwest wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. 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%.
Wednesday Night
Partly cloudy, with a low around 67.
Thursday
Sunny, with a high near 84.
Click Map For Forecast
Point Forecast:
Mc Lean VA
 38.95°N 77.19°W (Elev. 253 ft)
2:42 pm EDT Aug 17, 2017
3pm EDT Aug 17, 2017-6pm EDT Aug 24, 2017
 
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