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

Heavy Rainfall in the Southern Plains and Mississippi Valley; Thunderstorms in Eastern Colorado on Thursday

A multiple day heavy rainfall event will begin to set up from the Southern Plains into the Mississippi Valley Thursday, peaking in intensity over the holiday weekend. Widely scattered thunderstorms are expected to develop across eastern Colorado Thursday afternoon and evening. Large hail will be the primary hazard. Read More >

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Mostly Cloudy

72°F

22°C

Humidity 84%
Wind Speed Calm
Barometer 30.07 in (1018.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 21 May 12:54 am EDT
Extended Forecast for

Annapolis (U.S. Naval Academy) MD

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 62. North wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 68. Northeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Cloudy, with a low around 55. Northeast wind 8 to 10 mph. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: Showers, mainly after 8am. High near 65. East wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Showers

  • Friday Night

    Friday Night: Showers. Low around 53. East wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Saturday

    Saturday: Showers. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 55. Chance of precipitation is 90%.

    Low: 55 °F

    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 62. North wind 5 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Cloudy, with a high near 68. Northeast wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Cloudy, with a low around 55. Northeast wind 8 to 10 mph. Chance of precipitation is 40%.
Friday
Showers, mainly after 8am. High near 65. East wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Showers. Low around 53. East wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Saturday
Showers. High near 68. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 55. Chance of precipitation is 90%.
Sunday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Annapolis (U.S. Naval Academy) MD
 38.99°N 76.46°W (Elev. 7 ft)
Last Update:
10:53 pm EDT May 20, 2026
Forecast Valid:
1am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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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