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Significant Coastal Impacts to the Eastern Seaboard; Hurricane Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England into Monday. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Hurricane Nolo is expected to remain south of the Big Island of Hawaii. However, strong winds, damaging waves, and heavy rainfall may bring significant, life-threatening 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.

Overcast

62°F

17°C

Humidity 62%
Wind Speed Vrbl 6 mph
Barometer 29.91 in (1014.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 26 Sep 9:56 am EDT
Extended Forecast for

Gaithersburg MD

  • Today

    Today: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 67. North wind around 17 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tonight

    Tonight: A chance of rain before 10pm, then a chance of rain after 3am. Cloudy, with a low around 57. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly after 2pm. Cloudy, with a high near 62. Northwest wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Rain likely before 8pm. Cloudy, with a low around 58. Northwest wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Rain Likely
    then Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 69. Northwest wind around 8 mph.

    High: 69 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 67. North wind around 17 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain before 10pm, then a chance of rain after 3am. Cloudy, with a low around 57. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Sunday
Rain likely, mainly after 2pm. Cloudy, with a high near 62. Northwest wind around 16 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain likely before 8pm. Cloudy, with a low around 58. Northwest wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Mostly cloudy, with a high near 69. Northwest wind around 8 mph.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 63.
Friday
A slight chance of showers. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.13°N 77.21°W (Elev. 404 ft)
Last Update:
7:53 am EDT Sep 26, 2026
Forecast Valid:
10am EDT Sep 26, 2026-6pm EDT Oct 2, 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