Isolated Severe Storms in the Midwest; Fire Weather Concerns in the Northern Plains; Record Heat in the West

Isolated severe storms are possible across parts of the Florida Peninsula and the Great Lakes to Lower Missouri Valley and south-central Plains late this afternoon and early evening. Elevated to critical fire weather concerns continue over much of the northern Great Plains. Above average temperatures persist across portions of the West today. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

59°F

15°C

Humidity 68%
Wind Speed SE 5 mph
Barometer 30.12 in
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Last update 12 May 8:35 pm EDT
Extended Forecast for

Port Republic MD

  • Tonight

    Tonight: Mostly clear, with a low around 56. South wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 78. Southwest wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 78 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 4am, then a slight chance of showers between 4am and 5am.  Mostly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming west after midnight.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers
    Likely

  • Thursday

    Thursday: Partly sunny through mid morning, then becoming sunny, with a high near 69. Northwest wind 9 to 13 mph.

    High: 69 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51. Northwest wind around 9 mph.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. South wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday
Increasing clouds, with a high near 78. Southwest wind 13 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Showers and thunderstorms likely before 4am, then a slight chance of showers between 4am and 5am. Mostly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny through mid morning, then becoming sunny, with a high near 69. Northwest wind 9 to 13 mph.
Thursday Night
Partly cloudy, with a low around 51. Northwest wind around 9 mph.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.5°N 76.55°W (Elev. 148 ft)
7:53 pm EDT May 12, 2026
8pm EDT May 12, 2026-6pm EDT May 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database