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

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Fair

101°F

38°C

Humidity	32%
Wind Speed	W 8 mph
Barometer	29.91 in
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	105°F (41°C)
Last update	4 Jul 3:15 pm EDT

More Information:

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

Extended Forecast for

Colesville MD

Severe T-storm Watch until July 4, 10:00pm

Extreme Heat Warning until July 4, 09:00pm

Click here for hazard details and duration

Severe T-storm Watch

Extreme Heat Warning

Severe T-storm Watch until July 4, 10:00pm
Extreme Heat Warning until July 4, 09:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Independence Day
High: 100 °F
Severe
Thunderstorms
Tonight
Low: 73 °F
Severe
Thunderstorms
then Chance
Showers
Sunday
High: 95 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 70 °F
Showers then
Chance
Showers
Monday
High: 83 °F
Showers
Likely then
Showers
Monday Night
Low: 67 °F
Showers
Tuesday
High: 82 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 66 °F
Chance
T-storms

Detailed Forecast

Independence Day

Showers and thunderstorms likely, mainly after 5pm. Some of the storms could be severe. Partly sunny and hot, with a high near 100. Heat index values as high as 109. West wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before 1am, then a chance of showers. Some of the storms could be severe. Mostly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 95. Heat index values as high as 103. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 30%.

Sunday Night

Showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Low around 70. Northeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

Showers and possibly a thunderstorm. High near 83. Northeast wind 3 to 5 mph. Chance of precipitation is 90%.

Monday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 67. Chance of precipitation is 80%.

Tuesday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.

Tuesday Night

A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

Wednesday

Mostly sunny, with a high near 84.

Wednesday Night

Partly cloudy, with a low around 67.