Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

64°F

18°C

Humidity 100%
Wind Speed SE 3 mph
Barometer 30.25 in (1025.3 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 9 Sep 4:56 am EDT
Extended Forecast for

2 Miles WNW Wheaton-Glenmont MD

  • Today

    Today: Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. South wind around 9 mph, with gusts as high as 20 mph.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 87. West wind 5 to 8 mph.  Chance of precipitation is 30%.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm, mainly before 2am.  Low around 66. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers

  • Friday

    Friday: Mostly sunny, with a high near 82. North wind 3 to 6 mph.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

    Low: 68 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 71. South wind around 9 mph, with gusts as high as 20 mph.
Thursday
A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 87. West wind 5 to 8 mph. Chance of precipitation is 30%.
Thursday Night
Showers and possibly a thunderstorm, mainly before 2am. Low around 66. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 82. North wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 65.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Wheaton-Glenmont MD
 39.07°N 77.08°W (Elev. 299 ft)
4:53 am EDT Sep 9, 2026
4am EDT Sep 9, 2026-6pm EDT Sep 15, 2026
 
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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