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

70°F

21°C

Humidity	93%
Wind Speed	NW 5 mph
Barometer	29.89 in (1012.9 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Last update	12 Aug 4:56 am EDT

More Information:

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

Extended Forecast for

Gaithersburg MD

Today
High: 85 °F
Partly Sunny
Tonight
Low: 69 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 87 °F
Mostly Sunny
then Chance
Showers
Thursday Night
Low: 70 °F
Chance
Showers
Friday
High: 84 °F
Showers
Likely
Friday Night
Low: 66 °F
Chance
Showers then
Partly Cloudy
Saturday
High: 84 °F
Sunny
Saturday Night
Low: 66 °F
Partly Cloudy
then Slight
Chance
Showers
Sunday
High: 86 °F
Chance
Showers

Detailed Forecast

Today

Partly sunny, with a high near 85. Northwest wind 3 to 6 mph.

Tonight

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Partly cloudy, with a low around 69. 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 87. West wind 3 to 7 mph. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 70. Calm wind. Chance of precipitation is 50%.

Friday

Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. North wind 3 to 5 mph. Chance of precipitation is 60%.

Friday Night

A chance of showers before 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Saturday

Sunny, with a high near 84.

Saturday Night

A slight chance of showers after 2am. Partly cloudy, with a low around 66. Chance of precipitation is 20%.

Sunday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.

Monday

A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.

Monday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

Tuesday

Sunny, with a high near 84.