National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather Threats in the West; Storms in the High Plains; Flash Flood Risk in the Mid-Atlantic

Critical fire weather conditions persist across portions of the Northwest, Northern Rockies and Great Basin. Severe thunderstorms with large hail and a few strong gusts are possible across parts of the northern and central Plains. Heavy rainfall brings a flash flooding risk to the Mid-Atlantic. Heat builds in the Southwest into California this week. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

82°F

28°C

Humidity 82%
Wind Speed S 6 mph
Barometer 29.96 in (1014.6 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 11 Aug 11:52 pm EDT
Extended Forecast for

Chevy Chase MD

Flash Flood Watch August 12, 12:00pm until August 12, 11:00pm
Click here for hazard details and duration
Flash Flood Watch

  • Overnight

    Overnight: Partly cloudy, with a low around 75. South wind around 6 mph.

    Partly Cloudy

    Low: 75 °F

  • Wednesday

    Wednesday: Showers and thunderstorms likely after noon. Partly sunny, with a high near 91. Light and variable wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Mostly Sunny
    then T-storms
    Likely

    High: 91 °F

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Chance
    T-storms

    Low: 73 °F

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before noon, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 83. East wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely then
    T-storms
    Likely

    High: 83 °F

  • Thursday
    Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 72 °F

  • Friday

    Friday: A chance of showers, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

    Chance
    Showers then
    T-storms
    Likely

    High: 85 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely before 8pm, then a chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    T-storms
    Likely then
    Chance
    Showers

    Low: 70 °F

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    Showers
    Likely

    High: 83 °F

  • Saturday
    Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.

    Chance
    Showers

    Low: 68 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 75. South wind around 6 mph.
Wednesday
Showers and thunderstorms likely after noon. Partly sunny, with a high near 91. Light and variable wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Thursday
Showers likely and possibly a thunderstorm before noon, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 83. East wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%.
Friday
A chance of showers, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely before 8pm, then a chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 68.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Chevy Chase MD
 38.98°N 77.09°W (Elev. 344 ft)
Last Update:
10:33 pm EDT Aug 11, 2020
Forecast Valid:
12am EDT Aug 12, 2020-6pm EDT Aug 17, 2020
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation