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 78%
Wind Speed S 5 mph
Barometer 29.92 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 17 Aug 1:15 pm EDT
Extended Forecast for

4 Miles NNW Perry Point MD

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly after 5pm.  Mostly sunny, with a high near 89. South wind around 6 mph.  Chance of precipitation is 30%.

    High: 89 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms before midnight, then isolated showers between midnight and 4am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 68. Light and variable wind.  Chance of precipitation is 40%.

    Low: 68 °F

    Heavy Rain
    then Isolated
    Showers

  • Monday

    Monday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 75. Northeast wind 6 to 10 mph.  Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 63. East wind 6 to 8 mph.  Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm.  Mostly cloudy, with a high near 74. East wind around 8 mph.  Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °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 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers

  • Thursday

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

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 89. South wind around 6 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before midnight, then isolated showers between midnight and 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 40%.
Monday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 75. Northeast wind 6 to 10 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East wind 6 to 8 mph. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 74. East wind around 8 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. 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 63. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Perry Point MD
 39.65°N 76°W (Elev. 404 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