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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Overcast

84°F

29°C

Humidity 46%
Wind Speed Vrbl 5 mph
Barometer 29.79 in
Dewpoint 61°F (16°C)
Visibility NA
Heat Index84°F (29°C)
Last update 17 Jun 2:35 pm EDT
Extended Forecast for

Lusby MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. South wind around 10 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 74. South wind around 10 mph.

    Low: 74 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 95. Southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 95 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. West wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 87. Northwest wind 3 to 6 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. South wind around 10 mph.
Tonight
Increasing clouds, with a low around 74. South wind around 10 mph.
Thursday
A chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 95. Southwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. West wind 5 to 8 mph. Chance of precipitation is 50%.
Juneteenth
A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm. Partly sunny, with a high near 87. Northwest wind 3 to 6 mph. Chance of precipitation is 30%.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 89.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Monday
Showers and possibly a thunderstorm. High near 91. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms. Low around 68. Chance of precipitation is 80%.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lusby MD
 38.43°N 76.47°W (Elev. 52 ft)
Last Update:
2:22 pm EDT Jun 17, 2026
Forecast Valid:
2pm EDT Jun 17, 2026-6pm EDT Jun 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