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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Mostly Cloudy

68°F

20°C

Humidity 65%
Wind Speed NE 8 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 19 Sep 5:52 am EDT
Extended Forecast for

Arlington VA

  • Today

    Today: Partly sunny, with a high near 80. East wind 5 to 7 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 66. East wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly before 4pm. Mostly cloudy, with a high near 85. South wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Light and variable wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 72. Northeast wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 72 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 2pm. Cloudy, with a high near 66. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 40%.

    High: 62 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 80. East wind 5 to 7 mph.
Tonight
A slight chance of showers between midnight and 1am. Mostly cloudy, with a low around 66. East wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, mainly before 4pm. Mostly cloudy, with a high near 85. South wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 64. Light and variable wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 72. Northeast wind 8 to 10 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Tuesday
Showers likely, mainly after 2pm. Cloudy, with a high near 66. Chance of precipitation is 60%.
Tuesday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington VA
 38.89°N 77.08°W (Elev. 154 ft)
Last Update:
4:52 am EDT Sep 19, 2026
Forecast Valid:
6am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
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