Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Fair

76°F

24°C

Humidity 82%
Wind Speed W 6 mph
Barometer 29.97 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 4 Sep 8:35 am EDT
Extended Forecast for

Mount Rainier MD

  • Today

    Today: A chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 92. Heat index values as high as 101. Light west wind becoming northwest 5 to 9 mph in the morning.  Chance of precipitation is 30%.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 10pm.  Mostly cloudy, with a low around 72. Light northwest wind.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 84. North wind 3 to 5 mph.

    High: 84 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 66. Light north wind.  Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 82. Northeast wind 5 to 7 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 101. Light west wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 72. Light northwest wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Partly sunny, with a high near 84. North wind 3 to 5 mph.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Light north wind. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 82. Northeast wind 5 to 7 mph.
Sunday Night
Mostly clear, with a low around 63.
Labor Day
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Rainier MD
 38.93°N 76.96°W (Elev. 98 ft)
7:53 am EDT Sep 4, 2026
8am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
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