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

Tropical Storm and Storm Surge Watches for the North Carolina Outer Banks; Hot in the Mid-Mississippi Valley

Tropical Storm conditions and coastal flooding are possible in the North Carolina Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Watches are in effect. Major Hurricane Erin is expected to bring life threatening surf and rip currents along the East Coast beaches this week. Hot to extremely hot temperatures are forecast through Tuesday in the Mid-Mississippi Valley. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Overcast

70°F

21°C

Humidity 87%
Wind Speed NW 3 mph
Barometer 30.11 in (1019.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 19 Aug 2:55 am EDT
Extended Forecast for

Fairfax VA

  • Overnight

    Overnight: A chance of showers, mainly after 5am. Cloudy, with a low around 67. Northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 7am, then a slight chance of showers after 10am. Cloudy, with a high near 73. Northeast wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before midnight. Patchy fog between 11pm and 5am. Otherwise, mostly cloudy, with a low around 67. East wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 84. Southeast wind around 6 mph. Chance of precipitation is 40%.

    High: 84 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly after 5am. Cloudy, with a low around 67. Northeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers before 7am, then a slight chance of showers after 10am. Cloudy, with a high near 73. Northeast wind 7 to 9 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before midnight. Patchy fog between 11pm and 5am. Otherwise, mostly cloudy, with a low around 67. East wind 5 to 7 mph. Chance of precipitation is 20%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 9am. Otherwise, mostly cloudy, with a high near 84. Southeast wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Northeast wind around 6 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Friday
Sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 63.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Monday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
Last Update:
1:29 am EDT Aug 19, 2025
Forecast Valid:
3am EDT Aug 19, 2025-6pm EDT Aug 25, 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