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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

50°F

10°C

Humidity 77%
Wind Speed Calm
Barometer 30.18 in (1023.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 25 Sep 4:56 am EDT
Extended Forecast for

3 Miles E Poolesville MD

  • Today

    Today: Sunny, with a high near 72. North wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 53. North wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 2pm, then a slight chance of rain after 5pm. Increasing clouds, with a high near 70. North wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain, mainly before 8pm. Mostly cloudy, with a low around 56. Northwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 56 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 67. North wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 67 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance Rain
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 72. North wind 9 to 14 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 53. North wind 9 to 11 mph, with gusts as high as 21 mph.
Saturday
A slight chance of rain before 2pm, then a slight chance of rain after 5pm. Increasing clouds, with a high near 70. North wind 13 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Saturday Night
A chance of rain, mainly before 8pm. Mostly cloudy, with a low around 56. Northwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
A chance of rain, mainly after 2pm. Mostly cloudy, with a high near 67. North wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Sunday Night
A chance of rain before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Monday
Mostly cloudy, with a high near 70.
Monday Night
Mostly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Mostly cloudy, with a low around 60.
Thursday
Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Poolesville MD
 39.15°N 77.35°W (Elev. 348 ft)
Last Update:
4:53 am EDT Sep 25, 2026
Forecast Valid:
5am EDT Sep 25, 2026-6pm EDT Oct 1, 2026
 
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