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

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Fair

82°F

28°C

Humidity 65%
Wind Speed N 7 mph
Barometer 30.02 in (1016.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 28 Aug 6:54 pm EDT
Extended Forecast for

Cape St. Claire MD

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Calm wind becoming northeast 5 to 8 mph after midnight.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Northeast wind 5 to 8 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 69. Calm wind becoming southeast around 5 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74. South wind 5 to 9 mph.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 65. Calm wind becoming northeast 5 to 8 mph after midnight.
Saturday
Mostly sunny, with a high near 83. Northeast wind 5 to 8 mph.
Saturday Night
Increasing clouds, with a low around 69. Calm wind becoming southeast around 5 mph.
Sunday
Mostly sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning.
Sunday Night
Partly cloudy, with a low around 74. South wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 75.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
Wednesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Friday
A slight chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cape St. Claire MD
 39.03°N 76.48°W (Elev. 89 ft)
Last Update:
4:53 pm EDT Aug 28, 2026
Forecast Valid:
7pm EDT Aug 28, 2026-6pm EDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation