Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Partly Cloudy

85°F

29°C

Humidity 59%
Wind Speed S 5 mph
Barometer 30.14 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 21 Jun 2:35 pm EDT
Extended Forecast for

2 Miles N Jarrettsville MD

Extreme Heat Watch June 23, 11:00am until June 23, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • This Afternoon

    This Afternoon: Isolated showers.  Partly sunny, with a high near 88. Southwest wind around 7 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Southwest wind 5 to 7 mph.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 94. Heat index values as high as 101. West wind 7 to 9 mph.

    High: 94 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. West wind 5 to 7 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 97. Northwest wind around 6 mph.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

Detailed Forecast

This Afternoon
Isolated showers. Partly sunny, with a high near 88. Southwest wind around 7 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 71. Southwest wind 5 to 7 mph.
Sunday
Sunny, with a high near 94. Heat index values as high as 101. West wind 7 to 9 mph.
Sunday Night
Mostly clear, with a low around 75. West wind 5 to 7 mph.
Monday
Sunny and hot, with a high near 97. Northwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Jarrettsville MD
 39.63°N 76.46°W (Elev. 597 ft)
1:29 pm EDT Jun 21, 2025
2pm EDT Jun 21, 2025-6pm EDT Jun 27, 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