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Tropical Storm Edouard Along the Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard off the central Gulf Coast will bring tropical storm conditions and heavy rainfall to portions of Upper Texas and southwestern Louisiana coasts Tuesday into Wednesday. Storm Surge Watches and Tropical Storm Warnings are in effect. Hot and humid conditions will continue to expand from the Central Plains into the Ohio Valley and Mid-Atlantic this week. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

77°F

25°C

Humidity 99%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 31 Aug 8:35 pm EDT
Extended Forecast for

3 Miles WNW Charlotte Hall MD

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 73. Light southwest wind. Chance of precipitation is 20%.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Heat index values as high as 100. West wind 3 to 5 mph.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming north around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm. Mostly cloudy, with a low around 73. Light southwest wind. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 94. Heat index values as high as 100. West wind 3 to 5 mph.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 93. Heat index values as high as 103. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. South wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 95.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 60.
Labor Day
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Charlotte Hall MD
 38.51°N 76.83°W (Elev. 148 ft)
Last Update:
7:53 pm EDT Aug 31, 2026
Forecast Valid:
8pm EDT Aug 31, 2026-6pm EDT Sep 7, 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