Heavy Rain and Flooding Threat in the Ohio Valley

Gulf moisture will combine with a cold front and will bring heavy rain and scattered flash flooding over parts of the Mid-South into the Ohio Valley through the morning and the Ohio Valley and Central Appalachians on Tuesday. Showers and thunderstorms, some severe, are expected over the Southern Rockies/Southern High Plains on Tuesday. Read More >

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

65°F

18°C

Humidity 83%
Wind Speed SE 3 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 7 Oct 2:55 am EDT
Extended Forecast for

Accokeek MD

  • Overnight

    Overnight: Mostly clear, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79. South wind 6 to 10 mph, with gusts as high as 23 mph.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers, then showers and possibly a thunderstorm after 2am.  Low around 63. South wind 8 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Slight Chance
    Showers then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 11am, then showers likely between 11am and 2pm.  High near 69. Southwest wind 9 to 13 mph becoming north in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 69 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. North wind 9 to 11 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 46.

    Low: 46 °F

    Clear

  • Friday

    Friday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 62. South wind around 5 mph.
Tuesday
Mostly sunny, with a high near 79. South wind 6 to 10 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers, then showers and possibly a thunderstorm after 2am. Low around 63. South wind 8 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 11am, then showers likely between 11am and 2pm. High near 69. Southwest wind 9 to 13 mph becoming north in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Mostly clear, with a low around 49. North wind 9 to 11 mph.
Thursday
Sunny, with a high near 60.
Thursday Night
Clear, with a low around 46.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 66.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 54.
Columbus Day
Mostly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Accokeek MD
 38.68°N 77°W (Elev. 62 ft)
1:29 am EDT Oct 7, 2025
3am EDT Oct 7, 2025-6pm EDT Oct 13, 2025
 
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