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Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

A Few Clouds

92°F

33°C

Humidity 56%
Wind Speed Vrbl 5 mph
Barometer 30.01 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 1 Sep 1:55 pm EDT
Extended Forecast for

Port Republic MD

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 100. Southwest wind around 7 mph. Chance of precipitation is 20%.

    High: 92 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am. Partly cloudy, with a low around 76. South wind around 6 mph becoming west after midnight. Chance of precipitation is 40%.

    Low: 76 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly between 11am and 2pm. Mostly sunny, with a high near 87. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Southeast wind around 7 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 92 °F

    Slight Chance
    Showers then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    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
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. Heat index values as high as 100. Southwest wind around 7 mph. Chance of precipitation is 20%.
Tonight
Scattered showers and thunderstorms before 2am, then a slight chance of showers between 2am and 5am. Partly cloudy, with a low around 76. South wind around 6 mph becoming west after midnight. Chance of precipitation is 40%.
Wednesday
A chance of showers and thunderstorms, mainly between 11am and 2pm. Mostly sunny, with a high near 87. Northwest wind 5 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Southeast wind around 7 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers, then scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.
Thursday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
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 71. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 65.
Labor Day
A chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.48°N 76.55°W (Elev. 98 ft)
Last Update:
10:52 am EDT Sep 1, 2026
Forecast Valid:
2pm EDT Sep 1, 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