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 >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

48°F

9°C

Humidity 89%
Wind Speed Vrbl 3 mph
Barometer 30.18 in (1023.4 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 25 Sep 3:56 am EDT
Extended Forecast for

Rockville MD

  • Today

    Today: Mostly sunny, with a high near 71. North wind 10 to 15 mph, with gusts as high as 24 mph.

    High: 71 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. North wind around 11 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain before 2pm. Partly sunny, with a high near 68. North wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: A chance of rain, mainly after 7pm. Mostly cloudy, with a low around 56. Northwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    Low: 56 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 66. Northwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 66 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Monday Night

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

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 71. North wind 10 to 15 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 54. North wind around 11 mph, with gusts as high as 23 mph.
Saturday
A slight chance of rain before 2pm. Partly sunny, with a high near 68. North wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Saturday Night
A chance of rain, mainly after 7pm. Mostly cloudy, with a low around 56. Northwest wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sunday
A chance of rain. Mostly cloudy, with a high near 66. Northwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Sunday Night
Mostly cloudy, with a low around 58.
Monday
Mostly cloudy, with a high near 69.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Partly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rockville MD
 39.08°N 77.16°W (Elev. 430 ft)
Last Update:
2:22 am EDT Sep 25, 2026
Forecast Valid:
4am 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