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

Areas of Dangerous Heat and Heavy Rainfall Today

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >

Hazardous Weather Conditions

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Mostly Cloudy

82°F

28°C

Humidity 65%
Wind Speed Calm
Barometer 29.89 in (1012.2 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 20 Sep 5:54 pm EDT
Extended Forecast for

Mayo MD

Coastal Flood Advisory September 20, 06:52pm until September 21, 06:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory September 20, 06:52pm until September 21, 06:00am

    NOW until 6:00am Mon

    Coastal Flood Advisory

  • Tonight

    Low: 69 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Monday

    Monday: Isolated showers after 2pm. Mostly cloudy, with a high near 74. Northeast wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 74 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Monday Night

    Monday Night: Showers, mainly after 8pm. Low around 65. East wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 68. Breezy, with a northeast wind 16 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 68 °F

    Showers and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers likely. Cloudy, with a low around 62. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 62 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 66. Breezy. Chance of precipitation is 50%.

    High: 66 °F

    Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Scattered showers and thunderstorms before 8pm, then scattered showers between 8pm and 2am. Mostly cloudy, with a low around 69. Light and variable wind becoming north 5 to 10 mph after midnight. Chance of precipitation is 50%.
Monday
Isolated showers after 2pm. Mostly cloudy, with a high near 74. Northeast wind 11 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
Showers, mainly after 8pm. Low around 65. East wind 11 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm. High near 68. Breezy, with a northeast wind 16 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Tuesday Night
Showers likely. Cloudy, with a low around 62. Breezy, with a northeast wind 18 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 66. Breezy. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Friday
A slight chance of showers after 8am. Partly sunny, with a high near 69. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Mostly sunny, with a high near 71. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 58.
Sunday
A slight chance of showers. Mostly sunny, with a high near 73. 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:
Mayo MD
 38.9°N 76.51°W (Elev. 3 ft)
Last Update:
4:53 pm EDT Sep 20, 2026
Forecast Valid:
6pm EDT Sep 20, 2026-6pm EDT Sep 27, 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