Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

70°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 30.19 in (1023.3 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 29 Sep 8:56 pm EDT
Extended Forecast for

2 Miles SW Lisbon MD

  • Tonight

    Tonight: Cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Cloudy

  • Tuesday

    Tuesday: Cloudy, with a high near 77. North wind 3 to 7 mph.

    High: 77 °F

    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. North wind 6 to 8 mph.

    Low: 55 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 69. North wind around 10 mph.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Northeast wind 3 to 5 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Cloudy, with a low around 64. Calm wind.
Tuesday
Cloudy, with a high near 77. North wind 3 to 7 mph.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 69. North wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 45. Northeast wind 3 to 5 mph.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Lisbon MD
 39.32°N 77.09°W (Elev. 623 ft)
7:29 pm EDT Sep 29, 2025
9pm EDT Sep 29, 2025-6pm EDT Oct 6, 2025
 
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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