Major Heat Wave Expected for Two-Thirds of the U.S.

A dangerous and widespread summer heat wave is expected through this upcoming weekend across much of the Central and Eastern U.S. A large dome of high pressure will allow high temperatures to surge into the 90s and 100s in many locations, while heat indices will top 100 and approach 110 degrees or higher. There also will be no relief at night, as low temperatures remain in the upper 70s and 80s. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Overcast

82°F

28°C

Humidity 69%
Wind Speed S 7 mph
Barometer 30.01 in (1016.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Jul 1:52 am EDT
Extended Forecast for

2 Miles NNW Fort Myer VA

Heat Advisory July 17, 11:00am until July 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly cloudy, with a low around 77. South wind around 5 mph.

    Mostly Cloudy

    Low: 77 °F

  • Wednesday

    Wednesday: Isolated showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Partly sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind 6 to 10 mph.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Partly Sunny
    then Showers
    Likely

    High: 97 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 77. Southwest wind 5 to 8 mph becoming calm  after midnight.  Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Showers
    Likely then
    Chance
    Showers

    Low: 77 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 92. Heat index values as high as 100. West wind 3 to 7 mph.  Chance of precipitation is 50%.

    Chance
    Showers then
    Chance
    T-storms

    High: 92 °F

  • Thursday
    Night

    Thursday Night: A chance of thunderstorms before 8pm.  Partly cloudy, with a low around 76. Light west wind.  Chance of precipitation is 30%.

    Chance
    T-storms then
    Partly Cloudy

    Low: 76 °F

  • Friday

    Friday: Sunny and hot, with a high near 99.

    Hot

    High: 99 °F

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 81.

    Partly Cloudy

    Low: 81 °F

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 99.

    Hot

    High: 99 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 82.

    Partly Cloudy

    Low: 82 °F

Detailed Forecast

Overnight
Mostly cloudy, with a low around 77. South wind around 5 mph.
Wednesday
Isolated showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 77. Southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 92. Heat index values as high as 100. West wind 3 to 7 mph. Chance of precipitation is 50%.
Thursday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 76. Light west wind. Chance of precipitation is 30%.
Friday
Sunny and hot, with a high near 99.
Friday Night
Partly cloudy, with a low around 81.
Saturday
Mostly sunny and hot, with a high near 99.
Saturday Night
Partly cloudy, with a low around 82.
Sunday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Chance of precipitation is 40%.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Click Map For Forecast
Point Forecast:
2 Miles NNW Fort Myer VA
 38.89°N 77.08°W (Elev. 154 ft)
1:31 am EDT Jul 17, 2019
2am EDT Jul 17, 2019-6pm EDT Jul 23, 2019
 
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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