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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

61°F

16°C

Humidity NA
Wind Speed Calm
Barometer 29.96 in (1015.5 mb)
Dewpoint N/A
Visibility 9.00 mi
Last update 15 Apr 3:56 am EDT
Extended Forecast for

North Potomac MD

  • Today

    Today: Sunny, with a high near 91. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Southwest wind 5 to 8 mph.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 91. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 91 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 68. West wind around 8 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 82. Northwest wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 91. Light southwest wind increasing to 6 to 11 mph in the morning.
Tonight
Partly cloudy, with a low around 68. Southwest wind 5 to 8 mph.
Thursday
Partly sunny, with a high near 91. Light southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 68. West wind around 8 mph. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 82. Northwest wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Partly cloudy, with a low around 41. Chance of precipitation is 30%.
Monday
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
North Potomac MD
 39.11°N 77.25°W (Elev. 351 ft)
Last Update:
2:23 am EDT Apr 15, 2026
Forecast Valid:
4am EDT Apr 15, 2026-6pm EDT Apr 21, 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