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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Annapolis, United States Naval Academy (KNAK)

Lat: 38.99°NLon: 76.49°WElev: 3ft.

Fair

77°F

25°C

Humidity 94%
Wind Speed NW 8 mph
Barometer 29.90 in (1012.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 18 Aug 2:54 am EDT
Extended Forecast for

Gibson Island MD

Coastal Flood Advisory August 18, 03:18am until August 18, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory August 18, 03:18am until August 18, 05:00am

    NOW until 5:00am Mon

    Coastal Flood Advisory

  • Overnight

    Low: 74 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 11am. Mostly cloudy, with a high near 76. Northeast wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers after 10pm. Cloudy, with a low around 70. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 2pm. Patchy fog between 11am and 1pm. Otherwise, mostly cloudy, with a high near 75. East wind 10 to 13 mph. Chance of precipitation is 20%.

    High: 75 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 71. East wind 9 to 11 mph.

    Low: 71 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 20%.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

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

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 74. Northwest wind around 8 mph.
Monday
A slight chance of showers after 11am. Mostly cloudy, with a high near 76. Northeast wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers after 10pm. Cloudy, with a low around 70. East wind 13 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers before 2pm. Patchy fog between 11am and 1pm. Otherwise, mostly cloudy, with a high near 75. East wind 10 to 13 mph. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 71. East wind 9 to 11 mph.
Wednesday
A slight chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 72.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 73.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A chance of showers. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gibson Island MD
 39.07°N 76.42°W (Elev. 0 ft)
Last Update:
1:30 am EDT Aug 18, 2025
Forecast Valid:
3am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
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