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 >
Hazardous Weather Conditions
Current conditions at
Harford County Airport (K0W3)
Lat: 39.57°NLon: 76.2°WElev: 412ft.
Fair
83°F
28°C
| Humidity | 60% |
| Wind Speed | S 8 mph |
| Barometer | 30.09 in |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 21 Jun 7:05 pm EDT |
Extended Forecast for
Jarrettsville MD
Extreme Heat Watch June 23, 11:00am until June 23, 09:00pm
Tonight
Low: 70 °F
Partly Cloudy
Sunday
High: 94 °F
Sunny
Sunday Night
Low: 75 °F
Mostly Clear
Monday
High: 98 °F
Hot
Monday Night
Low: 77 °F
Mostly Clear
Tuesday
High: 98 °F
Hot
Tuesday Night
Low: 76 °F
Mostly Clear
Wednesday
High: 95 °F
Sunny
Wednesday Night
Low: 74 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 70. 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 98. Heat index values as high as 107. Northwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 77. Northwest wind 3 to 5 mph.
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 after 2pm. 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%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Jarrettsville MD
39.61°N 76.47°W (Elev. 574 ft)
39.61°N 76.47°W (Elev. 574 ft)
4:29 pm EDT Jun 21, 2025
7pm EDT Jun 21, 2025-6pm EDT Jun 28, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
