Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

65°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in (1019.5 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 11 Sep 11:56 pm EDT
Extended Forecast for

Rockville MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 82. Southeast wind 5 to 9 mph.  Chance of precipitation is 30%.

    High: 82 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then showers likely after 5am.  Patchy fog between 10pm and 5am. Low around 69. Southeast wind 5 to 8 mph becoming calm  in the evening.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Showers and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm.  Patchy fog between 7am and 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 84. Light and variable wind becoming northwest around 6 mph in the afternoon.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67. Calm wind becoming west around 5 mph after midnight.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 67. Calm wind.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 82. Southeast wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday Night
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 5am, then showers likely after 5am. Patchy fog between 10pm and 5am. Low around 69. Southeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm. Patchy fog between 7am and 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 84. Light and variable wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 67. Calm wind becoming west around 5 mph after midnight.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
A slight chance of showers. Mostly sunny, with a high near 79. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Rockville MD
 39.08°N 77.16°W (Elev. 430 ft)
10:53 pm EDT Sep 11, 2026
12am EDT Sep 12, 2026-6pm EDT Sep 18, 2026
 
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Additional Resources

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