Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Harford County Airport (K0W3)

Lat: 39.57°NLon: 76.2°WElev: 412ft.

Fair

96°F

36°C

Humidity	36%
Wind Speed	N 8 mph
Barometer	29.95 in
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	4 Jul 1:15 pm EDT

More Information:

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

Extended Forecast for

2 Miles SW White Hall MD

Extreme Heat Warning until July 4, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning until July 4, 09:00pm
NOW until 9:00pm Sat
Extreme Heat Warning
Independence Day
High: 98 °F
Severe
Thunderstorms
Tonight
Low: 71 °F
Severe
Thunderstorms
then Chance
Showers
Sunday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 67 °F
Showers
Monday
High: 80 °F
Showers
Monday Night
Low: 64 °F
Showers
Tuesday
High: 79 °F
Showers
Likely then
Chance
T-storms
Tuesday Night
Low: 65 °F
Chance
T-storms then
Chance
Showers

Detailed Forecast

Independence Day

Isolated showers and thunderstorms after 2pm. Some of the storms could be severe. Increasing clouds and hot, with a high near 98. Heat index values as high as 107. West wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Tonight

Scattered showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%.

Sunday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 40%.

Sunday Night

Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 3am, then a chance of showers and thunderstorms after 3am. Low around 67. North wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 80. Calm wind becoming northeast around 6 mph in the afternoon. Chance of precipitation is 90%.

Monday Night

Showers and possibly a thunderstorm. Low around 64. Chance of precipitation is 90%.

Tuesday

Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

Tuesday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.

Wednesday

A slight chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers before 2am. Partly cloudy, with a low around 67. Chance of precipitation is 20%.

Thursday

A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Friday

A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.