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

Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies

A storm system moving eastward will bring widespread showers and thunderstorms over parts of the Northern Plains to the Southern Plains and Upper Great Lakes through Friday. Heavy snow will continue over parts of the Northern Rockies. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

51°F

11°C

Humidity 71%
Wind Speed Calm
Barometer 30.04 in (1018.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 16 Oct 12:56 am EDT
Extended Forecast for

3 Miles WSW North Potomac MD

  • Overnight

    Overnight: Clear, with a low around 42. North wind around 7 mph.

    Low: 42 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 62. North wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 62 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 36. North wind around 6 mph.

    Low: 36 °F

    Clear

  • Friday

    Friday: Areas of frost before 9am. Otherwise, sunny, with a high near 63. Northwest wind 5 to 8 mph.

    High: 63 °F

    Areas Frost
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.

    High: 75 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a low around 42. North wind around 7 mph.
Thursday
Sunny, with a high near 62. North wind 6 to 13 mph, with gusts as high as 23 mph.
Thursday Night
Clear, with a low around 36. North wind around 6 mph.
Friday
Areas of frost before 9am. Otherwise, sunny, with a high near 63. Northwest wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 42. Calm wind.
Saturday
Partly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Monday
Mostly sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 68.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 50. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly sunny, with a high near 66. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW North Potomac MD
 39.07°N 77.31°W (Elev. 397 ft)
Last Update:
1:29 am EDT Oct 16, 2025
Forecast Valid:
1am EDT Oct 16, 2025-6pm EDT Oct 22, 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