Severe Thunderstorms in the Ohio and Tennessee Valleys; Flash Flooding Possible in the Southwest

Scattered damaging winds, isolated severe hail, and a brief tornado or two are possible from the Upper Ohio to Tennessee Valleys during the late afternoon and evening. Across the Southwest, monsoonal moisture will continue to bring heavy rain and a threat for isolated to scattered flash flooding through Saturday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

76°F

24°C

Humidity	82%
Wind Speed	S 5 mph
Barometer	29.97 in (1015.9 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	5 Sep 11:56 pm EDT

More Information:

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

Extended Forecast for

Germantown MD

Overnight
Low: 67 °F
Partly Cloudy
Saturday
High: 86 °F
Partly Sunny
then Showers
Likely
Saturday Night
Low: 59 °F
Chance
T-storms and
Patchy Fog
Sunday
High: 75 °F
Decreasing
Clouds
Sunday Night
Low: 50 °F
Mostly Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 51 °F
Mostly Clear
Tuesday
High: 76 °F
Mostly Sunny
Tuesday Night
Low: 55 °F
Mostly Cloudy

Detailed Forecast

Overnight

Partly cloudy, with a low around 67. South wind around 5 mph.

Saturday

A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

A chance of showers and thunderstorms. Patchy fog between 11pm and 1am. Otherwise, cloudy, with a low around 59. North wind 3 to 5 mph. Chance of precipitation is 50%.

Sunday

Mostly cloudy, then gradually becoming sunny, with a high near 75. Northwest wind around 6 mph.

Sunday Night

Mostly clear, with a low around 50. Northwest wind 3 to 5 mph.

Monday

Sunny, with a high near 75.

Monday Night

Mostly clear, with a low around 51.

Tuesday

Mostly sunny, with a high near 76.

Tuesday Night

Mostly cloudy, with a low around 55.