Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

73°F

23°C

Humidity	100%
Wind Speed	S 6 mph
Barometer	30.15 in
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	30 Jun 7:35 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles NNE Jarrettsville MD

Extreme Heat Watch July 2, 11:00am until July 3, 08:00pm

Heat Advisory July 1, 11:00am until July 1, 08:00pm

Click here for hazard details and duration

Extreme Heat Watch

Heat Advisory

Today
High: 88 °F
Sunny
Tonight
Low: 69 °F
Partly Cloudy
Wednesday
High: 95 °F
Mostly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 75 °F
Mostly Clear
Thursday
High: 102 °F
Hot
Thursday Night
Low: 77 °F
Mostly Clear
Friday
High: 101 °F
Sunny then
Chance
T-storms
Friday Night
Low: 75 °F
Chance
T-storms
Independence Day
High: 99 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Sunny, with a high near 88. Light southwest wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Tonight

Partly cloudy, with a low around 69. South wind 7 to 9 mph, with gusts as high as 18 mph.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 103. South wind 5 to 7 mph. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 75. South wind 3 to 7 mph.

Thursday

Sunny and hot, with a high near 102. Calm wind becoming southwest around 6 mph in the afternoon.

Thursday Night

Mostly clear, with a low around 77.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 101. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 50%.