Heavy Rainfall Continues from the Southwest to the Plains; Severe Thunderstorms in the Southern Plains

Pacific tropical moisture wrapping into a storm will continue a multi-day heavy rainfall event this week that will impact the Southwest into the Plains. Scattered severe thunderstorms capable of mainly severe wind gusts appear possible across portions of the southern Plains this afternoon into tonight. There is also a risk of isolated severe winds gusts and tornadoes in Kansas into Nebraska. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

78°F

26°C

Humidity 54%
Wind Speed Vrbl 5 mph
Barometer 30.12 in (1020.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 30 Sep 1:56 pm EDT
Extended Forecast for

Gaithersburg MD

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 79. South wind around 6 mph.

    High: 79 °F

    Partly Sunny

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 83. South wind 3 to 8 mph.

    High: 83 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. Southwest wind around 6 mph.

    Low: 63 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 86. Southwest wind 5 to 11 mph.  Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am.  Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am.  Mostly cloudy, with a low around 54. Chance of precipitation is 20%.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly after 8am.  Mostly cloudy, with a high near 65. Chance of precipitation is 40%.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a high near 79. South wind around 6 mph.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 61. South wind around 5 mph.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 83. South wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 63. Southwest wind around 6 mph.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Southwest wind 5 to 11 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 20%.
Sunday
A chance of showers, mainly after 8am. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Sunday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 68.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.13°N 77.21°W (Elev. 404 ft)
2:22 pm EDT Sep 30, 2026
2pm EDT Sep 30, 2026-6pm EDT Oct 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database