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Severe Thunderstorm and Tropical Storm Bertha Impacts

Numerous severe thunderstorms are expected across a broad region from the Ohio Valley to the Mid-Atlantic and Northeast States today into tonight. Swaths of damaging wind gusts are expected and some tornadoes are possible. Bertha is expected to bring tropical storm conditions to portions of the Gulf Coast from the Florida Panhandle westward to southeastern Louisiana later today and Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Partly Cloudy

76°F

24°C

Humidity 85%
Wind Speed Vrbl 6 mph
Barometer 29.73 in (1006.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 21 Jul 5:54 pm EDT
Extended Forecast for

2 Miles NNW Arnold MD

Severe T-storm Watch until July 21, 10:00pm
Click here for hazard details and duration
...
  •  
    Severe T-storm Watch until July 21, 10:00pm

    NOW until 10:00pm Tue

    Severe T-storm Watch

  • Tonight

    Low: 72 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. West wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 10pm. Mostly cloudy, with a low around 66. West wind around 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 82. North wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 82 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. East wind around 6 mph.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 20%.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 2pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 5am, then isolated showers and thunderstorms after 5am. Some of the storms could be severe. Low around 72. Southwest wind 10 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. West wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 10pm. Mostly cloudy, with a low around 66. West wind around 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 82. North wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 66. East wind around 6 mph.
Friday
Sunny, with a high near 84.
Friday Night
A slight chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 20%.
Saturday
A slight chance of showers before 2pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Arnold MD
 39.06°N 76.54°W (Elev. 56 ft)
Last Update:
4:54 pm EDT Jul 21, 2026
Forecast Valid:
6pm EDT Jul 21, 2026-6pm EDT Jul 28, 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