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

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

88°F

31°C

Humidity 77%
Wind Speed SW 6 mph
Barometer 29.93 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index104°F (40°C)
Last update 17 Aug 1:05 pm EDT
Extended Forecast for

3 Miles W Havre de Grace MD

  • This Afternoon

    This Afternoon: Isolated showers between 4pm and 5pm, then scattered showers and thunderstorms after 5pm.  Mostly sunny, with a high near 90. South wind around 6 mph.  Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before midnight, then isolated showers between midnight and 3am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 68. Calm wind becoming north around 5 mph after midnight.  Chance of precipitation is 50%.

    Low: 68 °F

    Heavy Rain
    then Isolated
    Showers

  • Monday

    Monday: Isolated showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 76. Northeast wind 6 to 9 mph.  Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. East wind 7 to 9 mph.  Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 76. East wind around 8 mph.  Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers after 2pm.  Mostly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers between 4pm and 5pm, then scattered showers and thunderstorms after 5pm. Mostly sunny, with a high near 90. South wind around 6 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before midnight, then isolated showers between midnight and 3am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 50%.
Monday
Isolated showers between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 76. Northeast wind 6 to 9 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East wind 7 to 9 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. East wind around 8 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Havre de Grace MD
 39.56°N 76.16°W (Elev. 249 ft)
10:29 am EDT Aug 17, 2025
1pm EDT Aug 17, 2025-6pm EDT Aug 23, 2025
 
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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