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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast with Haze

57°F

14°C

Humidity NA
Wind Speed Calm
Barometer 30.13 in (1021.7 mb)
Dewpoint N/A
Visibility 6.00 mi
Last update 15 Oct 10:56 pm EDT
Extended Forecast for

Rockville MD

  • Tonight

    Tonight: A chance of showers between 3am and 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 57. South wind around 7 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 5pm. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Southwest wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 81 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms before 4am, then a chance of showers. Low around 48. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Breezy, with a north wind 21 to 24 mph, with gusts as high as 37 mph.

    High: 53 °F

    Decreasing
    Clouds and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. North wind 5 to 11 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers between 3am and 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 57. South wind around 7 mph. Chance of precipitation is 50%.
Friday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 5pm. Patchy fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 81. Southwest wind 9 to 11 mph. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms before 4am, then a chance of showers. Low around 48. Breezy, with a northwest wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 53. Breezy, with a north wind 21 to 24 mph, with gusts as high as 37 mph.
Saturday Night
Mostly clear, with a low around 35. North wind 5 to 11 mph.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 39.
Monday
Sunny, with a high near 61.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rockville MD
 39.08°N 77.14°W (Elev. 397 ft)
Last Update:
10:53 pm EDT Oct 15, 2026
Forecast Valid:
11pm EDT Oct 15, 2026-6pm EDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation