Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Mostly Cloudy

78°F

26°C

Humidity 42%
Wind Speed W 13 G 22 mph
Barometer 30.11 in
Dewpoint 53°F (12°C)
Visibility 8.00 mi
Heat Index79°F (26°C)
Last update 13 Apr 2:55 pm EDT
Extended Forecast for

Leonardtown MD

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 22 mph.

    Low: 62 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. Southwest wind around 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Southwest wind 3 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. Southwest wind around 5 mph.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 22 mph.
Tuesday
Mostly sunny, with a high near 87. Light southwest wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 66. Southwest wind around 6 mph.
Wednesday
Mostly sunny, with a high near 89. Southwest wind 3 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 67. Southwest wind around 5 mph.
Thursday
Partly sunny, with a high near 89.
Thursday Night
Mostly cloudy, with a low around 66.
Friday
Mostly sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 60.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 63.
Sunday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 44. Chance of precipitation is 30%.
Monday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Leonardtown MD
 38.29°N 76.64°W (Elev. 16 ft)
2:23 pm EDT Apr 13, 2026
3pm EDT Apr 13, 2026-6pm EDT Apr 20, 2026
 
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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