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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

Overcast

84°F

29°C

Humidity 67%
Wind Speed S 12 mph
Barometer 29.86 in (1011.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 1 Aug 6:52 pm EDT
Extended Forecast for

Arlington VA

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 74. South wind 8 to 11 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. Southeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 5am, then a chance of showers. Patchy fog between 11pm and 2am. Low around 73. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Showers and
    Patchy Fog

  • Monday

    Monday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. South wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Light south wind. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 74. South wind 8 to 11 mph. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 85. Southeast wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms before 5am, then a chance of showers. Patchy fog between 11pm and 2am. Low around 73. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. South wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Light south wind. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington VA
 38.88°N 77.11°W (Elev. 249 ft)
Last Update:
5:02 pm EDT Aug 1, 2026
Forecast Valid:
7pm EDT Aug 1, 2026-6pm EDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation