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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

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

89°F

32°C

Humidity 77%
Wind Speed S 8 mph
Barometer 29.87 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index108°F (42°C)
Last update 17 Aug 3:55 pm EDT
Extended Forecast for

Street MD

  • This Afternoon

    This Afternoon: Isolated showers, then scattered showers and thunderstorms after 5pm. Partly 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 10pm. Mostly cloudy, with a low around 66. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 40%.

    Low: 66 °F

    Scattered
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 75. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 75 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 62. East wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 77. East wind around 7 mph. Chance of precipitation is 20%.

    High: 77 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers, then scattered showers and thunderstorms after 5pm. Partly sunny, with a high near 90. South wind around 6 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before 10pm. Mostly cloudy, with a low around 66. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 40%.
Monday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 75. Northeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 62. East wind 3 to 6 mph. Chance of precipitation is 30%.
Tuesday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 77. East wind around 7 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 61.
Friday
Mostly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 64.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
A chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Street MD
 39.64°N 76.34°W (Elev. 318 ft)
Last Update:
1:29 pm EDT Aug 17, 2025
Forecast Valid:
4pm EDT Aug 17, 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