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.

Fair

71°F

22°C

Humidity 79%
Wind Speed W 5 mph
Barometer 29.91 in (1013.1 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 19 Aug 4:54 am EDT
Extended Forecast for

Arnold MD

  • Today

    Today: Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.

    High: 89 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Light and variable wind.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 85. Light and variable wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. North wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A chance of showers after 2pm. Mostly sunny, with a high near 83. Northeast wind around 8 mph. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Chance
    T-storms

Detailed Forecast

Today
Patchy fog between 7am and 8am. Otherwise, sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 73. Light and variable wind.
Thursday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 85. Light and variable wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. North wind 3 to 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Northeast wind around 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 8am. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A slight chance of showers. Sunny, with a high near 85. Chance of precipitation is 20%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arnold MD
 39.04°N 76.51°W (Elev. 98 ft)
Last Update:
5:22 am EDT Aug 19, 2026
Forecast Valid:
5am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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