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

Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

81°F

27°C

Humidity 39%
Wind Speed Vrbl 3 mph
Barometer 30.09 in (1019.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 22 Aug 1:56 pm EDT
Extended Forecast for

4 Miles SE Poolesville MD

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. Light north wind.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. Light south wind.

    Low: 60 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Light south wind increasing to 5 to 10 mph in the morning.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67. South wind 6 to 9 mph.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. South wind 6 to 8 mph. Chance of precipitation is 50%.

    High: 83 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 83. Light north wind.
Tonight
Clear, with a low around 60. Light south wind.
Saturday
Sunny, with a high near 84. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 67. South wind 6 to 9 mph.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. South wind 6 to 8 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Poolesville MD
 39.1°N 77.36°W (Elev. 292 ft)
Last Update:
10:29 am EDT Aug 22, 2025
Forecast Valid:
2pm EDT Aug 22, 2025-6pm EDT Aug 28, 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