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

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Overcast

79°F

26°C

Humidity 88%
Wind Speed Calm
Barometer 29.99 in (1015.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Aug 4:54 am EDT
Extended Forecast for

Arnold MD

  • Overnight

    Overnight: Isolated showers. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.

    Low: 74 °F

    Isolated
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 87. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.

    High: 87 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 88. East wind 5 to 7 mph.

    High: 88 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 72. South wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely

  • Monday

    Monday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Overnight
Isolated showers. Mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 87. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Friday Night
A slight chance of showers and thunderstorms before 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 72. Calm wind. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 88. East wind 5 to 7 mph.
Saturday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 72. South wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Monday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Sunny, with a high near 87.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arnold MD
 39.04°N 76.51°W (Elev. 98 ft)
Last Update:
4:53 am EDT Aug 14, 2026
Forecast Valid:
5am EDT Aug 14, 2026-6pm EDT Aug 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation