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

Early Heat Wave in the West; Fire Concerns in the Plains

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. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

34°F

1°C

Humidity 52%
Wind Speed W 10 G 18 mph
Barometer 29.87 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 17 Mar 6:15 am EDT
Extended Forecast for

Leonardtown MD

  • Today

    Today: Increasing clouds, with a high near 45. West wind around 11 mph, with gusts as high as 20 mph.

    High: 45 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind 5 to 10 mph.

    Low: 26 °F

    Gradual
    Clearing

  • Wednesday

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

    High: 42 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. Light south wind.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Calm wind becoming south around 6 mph in the afternoon.

    High: 53 °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 61.

    High: 61 °F

    Mostly Sunny

  • Friday Night

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

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 45. West wind around 11 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 26. Northwest wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 42. Light and variable wind becoming southeast around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 31. Light south wind.
Thursday
Mostly sunny, with a high near 53. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 61.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Leonardtown MD
 38.29°N 76.64°W (Elev. 16 ft)
Last Update:
4:53 am EDT Mar 17, 2026
Forecast Valid:
6am EDT Mar 17, 2026-6pm EDT Mar 23, 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