Sunday Brings Heat Relief For Some; Flash Flood Threat Along Cold Front

A cold front shifting across the Central Plains, Midwest, Great Lakes and Northeast on Sunday will bring some relief from the heat with cooler and drier air. Excessive heat holds Sunday roughly south of I-70. Heavy rain from thunderstorms along the front may bring flash flooding. Read More >

Hazardous Weather Conditions

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Current conditions at

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

83°F

28°C

Humidity	59%
Wind Speed	W 3 mph
Barometer	29.90 in (1013.0 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	20 Jul 9:56 pm EDT

More Information:

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

Extended Forecast for

Gainesville VA

Excessive Heat Warning July 21, 11:00am until July 21, 09:00pm

Click here for hazard details and duration

Excessive Heat Warning

Tonight

Scattered
T-storms then
Partly Cloudy
Low: 78 °F
Sunday

Sunny then
Chance
T-storms
High: 99 °F
Sunday
Night

Chance
T-storms
Low: 74 °F
Monday

Heavy Rain
High: 89 °F
Monday
Night

Heavy Rain
Low: 67 °F
Tuesday

Chance
Showers then
Slight Chance
Showers
High: 80 °F
Tuesday
Night

Mostly Cloudy
Low: 62 °F
Wednesday

Mostly Sunny
High: 82 °F
Wednesday
Night

Mostly Clear
Low: 62 °F

Detailed Forecast

Tonight

Scattered showers and thunderstorms, mainly before 11pm. Some of the storms could produce gusty winds. Partly cloudy, with a low around 78. West wind 3 to 5 mph. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Heat index values as high as 110. West wind 3 to 7 mph. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

Monday

Showers likely and possibly a thunderstorm, then showers and thunderstorms after noon. Some of the storms could produce heavy rain. High near 89. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm after midnight. Some of the storms could produce heavy rain. Cloudy, with a low around 67. West wind around 6 mph. Chance of precipitation is 70%.

Tuesday

A chance of showers, mainly before noon. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.

Tuesday Night

Mostly cloudy, with a low around 62.

Wednesday

Mostly sunny, with a high near 82.

Wednesday Night

Mostly clear, with a low around 62.

Thursday

Sunny, with a high near 84.

Thursday Night

Mostly clear, with a low around 63.