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

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Fair

80°F

27°C

Humidity 74%
Wind Speed E 10 mph
Barometer 30.16 in (1021.3 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 Jun 12:54 pm EDT
Extended Forecast for

Crownsville MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 90. South wind around 6 mph.

    High: 90 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind around 6 mph.

    Low: 73 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 101. Southwest wind 6 to 8 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. Southwest wind 3 to 7 mph.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Northwest wind 3 to 6 mph.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 98.

    High: 98 °F

    Hot

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 90. South wind around 6 mph.
Tonight
Mostly clear, with a low around 73. South wind around 6 mph.
Sunday
Sunny, with a high near 96. Heat index values as high as 101. Southwest wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 78. Southwest wind 3 to 7 mph.
Monday
Sunny and hot, with a high near 99. Northwest wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 79.
Tuesday
Sunny and hot, with a high near 100.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
Mostly sunny and hot, with a high near 98.
Wednesday Night
Partly cloudy, with a low around 77.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Crownsville MD
 39.02°N 76.6°W (Elev. 131 ft)
Last Update:
1:29 pm EDT Jun 21, 2025
Forecast Valid:
2pm EDT Jun 21, 2025-6pm EDT Jun 27, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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