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

Flood Watch in effect from July 31, 02:00 PM EDT until August 1, 02:00 AM EDT

Current conditions at

College Park Airport (KCGS)

Lat: 38.98°NLon: 76.92°WElev: 49ft.

Fair

80°F

27°C

Humidity	89%
Wind Speed	Calm
Barometer	29.96 in
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	31 Jul 1:55 am EDT

More Information:

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

Extended Forecast for

Silver Spring MDSimilar City Names

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

Click here for hazard details and duration

Flood Watch

Overnight
Low: 77 °F
Mostly Clear
Thursday
High: 91 °F
Chance
T-storms then
Heavy Rain
Thursday Night
Low: 67 °F
Heavy Rain
then Chance
Showers
Friday
High: 76 °F
Chance
Showers
Friday Night
Low: 63 °F
Slight Chance
Showers
Saturday
High: 80 °F
Sunny
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 62 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 77. Calm wind.

Thursday

A chance of showers, then showers and thunderstorms likely after 11am. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 91. Heat index values as high as 102. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between 1 and 2 inches possible.

Thursday Night

Showers and thunderstorms before 5am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 67. North 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 76. North wind around 10 mph. Chance of precipitation is 30%.

Friday Night

A slight chance of showers before 2am. Partly cloudy, with a low around 63. North wind around 7 mph. Chance of precipitation is 20%.

Saturday

Sunny, with a high near 80.

Saturday Night

Mostly clear, with a low around 61.

Sunday

Mostly sunny, with a high near 82.

Sunday Night

Partly cloudy, with a low around 62.

Monday

Mostly sunny, with a high near 84.