Storm System to Move Across the Ohio Valley to the Mid-Atlantic and Northeast

Isolated severe thunderstorms will be possible on Veterans Day across parts of the lower Ohio and western Tennessee Valleys. A developing storm will bring rain and gusty winds to the Mid-Atlantic and Northeast on Thursday, with the first accumulating snow likely in the higher elevations of the central Appalachians and interior Northeast. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

68°F

20°C

Humidity	44%
Wind Speed	S 12 mph
Barometer	29.86 in (1012.2 mb)
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Last update	11 Nov 2:56 pm EST

More Information:

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

Extended Forecast for

Ashton-Sandy Spring MD

Tonight
Low: 46 °F
Decreasing
Clouds
Thursday
High: 62 °F
Rain Likely
Thursday Night
Low: 38 °F
Rain Likely
then Chance
Rain
Friday
High: 48 °F
Partly Sunny
Friday Night
Low: 32 °F
Partly Cloudy
Saturday
High: 48 °F
Mostly Sunny
Saturday Night
Low: 33 °F
Partly Cloudy
Sunday
High: 50 °F
Mostly Sunny
Sunday Night
Low: 32 °F
Partly Cloudy

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Southeast wind around 6 mph becoming calm in the evening.

Thursday

Rain likely, mainly after 5pm. Partly sunny, with a high near 62. Calm wind becoming northwest 5 to 9 mph in the morning. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Thursday Night

Rain likely before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 38. Northwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Partly sunny, with a high near 48. Northwest wind 13 to 15 mph, with gusts as high as 25 mph.

Friday Night

Partly cloudy, with a low around 32. Northwest wind 6 to 9 mph, with gusts as high as 18 mph.

Saturday

Mostly sunny, with a high near 48.

Saturday Night

Partly cloudy, with a low around 33.

Sunday

Mostly sunny, with a high near 50.

Sunday Night

Partly cloudy, with a low around 32.