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.

A Few Clouds

78°F

26°C

Humidity 87%
Wind Speed Calm
Barometer 29.95 in (1014.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 28 Aug 12:54 am EDT
Extended Forecast for

Cape St. Claire MD

  • Overnight

    Overnight: Scattered showers, mainly before 2am. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 71 °F

    Scattered
    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the morning. Chance of precipitation is 20%.

    High: 85 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 70. Light north wind. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 85. North wind 5 to 7 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Light southeast wind.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers, mainly before 2am. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Calm wind becoming north around 5 mph in the morning. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 70. Light north wind. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 85. North wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 71. Light southeast wind.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 74.
Monday
Sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 76.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cape St. Claire MD
 39.05°N 76.48°W (Elev. 98 ft)
Last Update:
10:52 pm EDT Aug 27, 2026
Forecast Valid:
1am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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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