National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Overcast

39°F

4°C

Humidity 73%
Wind Speed Vrbl 7 mph
Barometer 29.74 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 17 Mar 2:55 am EDT
Extended Forecast for

3 Miles NNE Port Republic MD

  • Overnight

    Overnight: Partly cloudy, with a low around 31. West wind around 13 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 45. West wind 10 to 13 mph, with gusts as high as 23 mph.

    High: 45 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind 6 to 11 mph.

    Low: 27 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Partly sunny, with a high near 42. North wind around 6 mph becoming southeast in the afternoon.

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. South wind around 5 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 31. West wind around 13 mph, with gusts as high as 25 mph.
Tuesday
Increasing clouds, with a high near 45. West wind 10 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind 6 to 11 mph.
Wednesday
Partly sunny, with a high near 42. North wind around 6 mph becoming southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 32. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 51.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 67.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Port Republic MD
 38.52°N 76.54°W (Elev. 98 ft)
Last Update:
2:42 am EDT Mar 17, 2026
Forecast Valid:
3am EDT Mar 17, 2026-6pm EDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation