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

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Mostly Cloudy

86°F

30°C

Humidity 75%
Wind Speed Calm
Barometer 30.04 in (1017.5 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 13 Jul 10:55 am EDT
Extended Forecast for

Franconia VA

Flood Watch July 13, 12:00pm until July 14, 02:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: A chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 88. Southeast wind around 6 mph. Chance of precipitation is 40%.

    High: 88 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms between 11pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 73 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 70%.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

    High: 89 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 60%.

    High: 92 °F

    Partly Sunny
    then Showers
    Likely

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 88. Southeast wind around 6 mph. Chance of precipitation is 40%.
Tonight
A chance of showers and thunderstorms between 11pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.
Monday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 90. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
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 89. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Franconia VA
 38.77°N 77.16°W (Elev. 197 ft)
Last Update:
10:30 am EDT Jul 13, 2025
Forecast Valid:
11am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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