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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Partly Cloudy

74°F

23°C

Humidity 91%
Wind Speed Calm
Barometer 30.06 in (1017.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Sep 5:52 am EDT
Extended Forecast for

Arlington VA

  • Today

    Today: Partly sunny, with a high near 85. North wind 6 to 8 mph.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. Northeast wind around 7 mph.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 79. East wind around 7 mph.

    High: 79 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 68. Southeast wind 5 to 7 mph.

    Low: 68 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 83. South wind 6 to 10 mph. Chance of precipitation is 40%.

    High: 83 °F

    Partly Sunny
    then 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 slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.

    High: 78 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 85. North wind 6 to 8 mph.
Tonight
Mostly cloudy, with a low around 64. Northeast wind around 7 mph.
Saturday
Partly sunny, with a high near 79. East wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 68. Southeast wind 5 to 7 mph.
Sunday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 83. South wind 6 to 10 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Monday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
Monday Night
Showers likely, mainly after 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Tuesday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Tuesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Thursday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arlington VA
 38.89°N 77.08°W (Elev. 154 ft)
Last Update:
5:51 am EDT Sep 18, 2026
Forecast Valid:
6am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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