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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

69°F

21°C

Humidity 86%
Wind Speed N 3 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 19 Aug 12:55 am EDT
Extended Forecast for

Mount Vernon VA

  • Overnight

    Overnight: A chance of showers, mainly after 3am. Cloudy, with a low around 69. Northeast wind around 6 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly after 8am. Mostly cloudy, with a high near 72. Northeast wind around 8 mph. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 70. East wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. East wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. Northeast wind around 8 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly after 3am. Cloudy, with a low around 69. Northeast wind around 6 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, mainly after 8am. Mostly cloudy, with a high near 72. Northeast wind around 8 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 70. East wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. East wind 5 to 7 mph. Chance of precipitation is 20%.
Wednesday Night
A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 70. Northeast wind around 8 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 66.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 69.
Saturday
Sunny, with a high near 84.
Saturday Night
Partly cloudy, with a low around 71.
Sunday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon VA
 38.7°N 77.11°W (Elev. 3 ft)
Last Update:
10:29 pm EDT Aug 18, 2025
Forecast Valid:
1am 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