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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Fair

84°F

29°C

Humidity 77%
Wind Speed SE 12 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 17 Aug 12:54 pm EDT
Extended Forecast for

Cape Saint Claire MD

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 87. South wind around 8 mph.

    High: 87 °F

    Mostly Sunny

  • Tonight

    Tonight: Scattered showers and thunderstorms before 11pm. Mostly cloudy, with a low around 73. South wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 50%.

    Low: 73 °F

    Scattered
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 77. Northeast wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 77 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 70. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers. Partly sunny, with a high near 76. East wind 11 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 87. South wind around 8 mph.
Tonight
Scattered showers and thunderstorms before 11pm. Mostly cloudy, with a low around 73. South wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 50%.
Monday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 77. Northeast wind 14 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 70. East wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers. Partly sunny, with a high near 76. East wind 11 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 72.
Saturday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cape Saint Claire MD
 39.05°N 76.42°W (Elev. 3 ft)
Last Update:
1:29 pm EDT Aug 17, 2025
Forecast Valid:
1pm EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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