National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

58°F

14°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in (1019.0 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 25 Aug 1:56 am EDT
Extended Forecast for

4 Miles W Glenwood MD

  • Overnight

    Overnight: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 81. Northwest wind 5 to 9 mph.

    High: 81 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 6 mph. Chance of precipitation is 50%.

    Low: 67 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Calm wind.
Tuesday
Increasing clouds, with a high near 81. Northwest wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 61. Calm wind.
Wednesday
Mostly sunny, with a high near 85. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind around 6 mph. Chance of precipitation is 50%.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 66. Chance of precipitation is 80%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 64.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Glenwood MD
 39.28°N 77.1°W (Elev. 489 ft)
Last Update:
2:22 am EDT Aug 25, 2026
Forecast Valid:
2am EDT Aug 25, 2026-6pm EDT Aug 31, 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