Thunderstorms and Heavy Rainfall in the Mid-Atlantic; Fire Weather Concerns in the West

Thunderstorms are expected to bring heavy rain and potential significant flash and urban flooding to the Mid-Atlantic on Thursday, especially along the I-95 urban corridor. Dry conditions, gusty winds, and isolated dry thunderstorms will continue to bring a critical fire weather threat to the northwestern Great Basin into the interior Northwest through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Leesburg / Godfrey (KJYO)

Lat: 39.08°NLon: 77.57°WElev: 390ft.

Fair

82°F

28°C

Humidity	84%
Wind Speed	Calm
Barometer	30.01 in
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	90°F (32°C)
Last update	30 Jul 11:15 pm EDT

More Information:

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

Extended Forecast for

3 Miles SW Ashburn VA

Flood Watch July 31, 02:00pm until August 1, 02:00am

Click here for hazard details and duration

Flood Watch

Tonight
Low: 75 °F
Partly Cloudy
Thursday
High: 93 °F
Slight Chance
T-storms then
T-storms
Likely
Thursday Night
Low: 68 °F
T-storms then
Showers
Friday
High: 77 °F
Chance
Showers
Friday Night
Low: 61 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 81 °F
Sunny
Saturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 75. Calm wind.

Thursday

Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 93. Heat index values as high as 103. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Low around 68. Northeast wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Friday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. North wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

Friday Night

A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 61. North wind 6 to 9 mph. Chance of precipitation is 20%.

Saturday

Sunny, with a high near 81.

Saturday Night

Mostly clear, with a low around 58.

Sunday

Mostly sunny, with a high near 82.

Sunday Night

Partly cloudy, with a low around 60.

Monday

Mostly sunny, with a high near 84.

Monday Night

Partly cloudy, with a low around 62.