Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

75°F

24°C

Humidity	76%
Wind Speed	W 7 mph
Barometer	29.94 in (1014.8 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	11 Aug 9:56 pm EDT

More Information:

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

Extended Forecast for

Sandy Spring MD

Tonight
Low: 68 °F
Chance
T-storms then
Chance
Showers
Wednesday
High: 85 °F
Partly Sunny
Wednesday Night
Low: 68 °F
Slight Chance
Showers
Thursday
High: 86 °F
Sunny then
Chance
Showers
Thursday Night
Low: 69 °F
Chance
Showers
Friday
High: 84 °F
Chance
Showers
Friday Night
Low: 63 °F
Partly Cloudy
Saturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 64 °F
Partly Cloudy

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 3am. Mostly cloudy, with a low around 68. West wind 3 to 5 mph. Chance of precipitation is 40%.

Wednesday

Partly sunny, with a high near 85. Northwest wind 3 to 5 mph.

Wednesday Night

A slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.

Thursday

A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 86. West wind 3 to 7 mph. Chance of precipitation is 40%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Light southwest wind. Chance of precipitation is 50%.

Friday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.

Friday Night

Partly cloudy, with a low around 63.

Saturday

Mostly sunny, with a high near 82.

Saturday Night

Partly cloudy, with a low around 64.

Sunday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.

Monday

A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 30%.