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 across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Mostly Cloudy

97°F

36°C

Humidity	45%
Wind Speed	SW 3 mph
Barometer	29.98 in
Dewpoint	73°F (23°C)
Visibility	7.00 mi
Heat Index	106°F (41°C)
Last update	1 Jul 4:55 pm EDT

More Information:

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

Extended Forecast for

Lanham MD

Heat Advisory July 1, 05:06pm until July 1, 08:00pm

Extreme Heat Warning July 2, 10:00am until July 2, 08:00pm

Extreme Heat Warning July 3, 10:00am until July 3, 08:00pm

Click here for hazard details and duration

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Extreme Heat Warning

Heat Advisory July 1, 05:06pm until July 1, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
Tonight
Low: 78 °F
Isolated
T-storms then
Mostly Clear
Thursday
High: 102 °F
Hot
Thursday Night
Low: 80 °F
Clear
Friday
High: 104 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 80 °F
Mostly Clear
Independence Day
High: 101 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 76 °F
Chance
T-storms
Sunday
High: 97 °F
Mostly Sunny
then Showers
Likely

Detailed Forecast

Tonight

Isolated showers and thunderstorms between 7pm and 10pm. Mostly clear, with a low around 78. South wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

Thursday

Sunny and hot, with a high near 102. Heat index values as high as 111. Calm wind becoming west around 5 mph in the afternoon.

Thursday Night

Clear, with a low around 80. Light and variable wind.

Friday

A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 104. Heat index values as high as 113. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

Friday Night

Mostly clear, with a low around 80. West wind around 5 mph becoming calm in the evening.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 101. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.

Sunday

Showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 97. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Monday

A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

Tuesday

A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 20%.