Severe Thunderstorms and Flash Flooding for the Central U.S. through Tuesday; Dangerous East Coast Beach Conditions

Thunderstorms ahead of an approaching cold front will impact much of the Central U.S. through Tuesday. Severe thunderstorms and flash flooding are forecast for portions of the central/southern Plains and the Mississippi, Ohio, and Tennessee Valleys. Meanwhile, dangerous waves and rip currents will impact portions of the East Coast as tropical activity increases in the Atlantic. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

78°F

26°C

Humidity	62%
Wind Speed	S 8 mph
Barometer	30.05 in (1018.4 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	22 Sep 4:56 pm EDT

More Information:

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

Extended Forecast for

Ashton-Sandy Spring MD

Tonight
Low: 61 °F
Partly Cloudy
Tuesday
High: 82 °F
Increasing
Clouds
Tuesday Night
Low: 63 °F
Chance
Showers
Wednesday
High: 78 °F
Mostly Cloudy
then Chance
Showers
Wednesday Night
Low: 65 °F
Showers
Likely
Thursday
High: 76 °F
Showers
Thursday Night
Low: 64 °F
Showers
Friday
High: 74 °F
Chance
Showers
Friday Night
Low: 60 °F
Chance
Showers

Detailed Forecast

Tonight

Partly cloudy, with a low around 61. South wind 3 to 7 mph.

Tuesday

Increasing clouds, with a high near 82. South wind 5 to 7 mph.

Tuesday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Light and variable wind. Chance of precipitation is 30%.

Wednesday

A chance of showers after 2pm. Mostly cloudy, with a high near 78. Light and variable wind. Chance of precipitation is 40%.

Wednesday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 65. Light southeast wind. Chance of precipitation is 60%.

Thursday

Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 76. Chance of precipitation is 80%.

Thursday Night

Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 64. Chance of precipitation is 80%.

Friday

A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.

Friday Night

A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.

Saturday

A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.

Saturday Night

Partly cloudy, with a low around 61.

Sunday

Mostly sunny, with a high near 78.