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 >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

88°F

31°C

Humidity 35%
Wind Speed W 9 mph
Barometer 29.95 in (1015.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 15 Apr 2:56 pm EDT
Extended Forecast for

Germantown MD

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 6 mph becoming west after midnight. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 81. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Light northeast wind.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 39. Chance of precipitation is 30%.

    Low: 39 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 67. Southwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 89. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. Southwest wind around 6 mph becoming west after midnight. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 81. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 59. Light northeast wind.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Sunday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 39. Chance of precipitation is 30%.
Monday
Sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Germantown MD
 39.18°N 77.26°W (Elev. 489 ft)
Last Update:
2:23 pm EDT Apr 15, 2026
Forecast Valid:
3pm EDT Apr 15, 2026-6pm EDT Apr 22, 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