Severe Thunderstorms and Flash Flooding Possible Through the Holiday Weekend

Severe thunderstorms, heavy rainfall, and additional flash flooding will remain possible across much of the central U.S. and into parts of the Ohio Valley and Mid Atlantic through Monday. Elsewhere, cool and unsettled weather will persist over the West, while record high temperatures are expected in the Southeast. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

En Español

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

78°F

26°C

Humidity	62%
Wind Speed	SE 8 mph
Barometer	30.07 in (1020.6 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	25 May 5:56 pm EDT

More Information:

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

Extended Forecast for

Gaithersburg MD

Tonight

Scattered
T-storms then
Scattered
Showers
Low: 67 °F
Sunday

Mostly Sunny
then Chance
T-storms
High: 88 °F
Sunday
Night

T-storms
Likely then
Chance
Showers
Low: 67 °F
Memorial
Day

Slight Chance
Showers
High: 82 °F
Monday
Night

Mostly Cloudy
then Chance
Showers
Low: 66 °F
Tuesday

Chance
Showers then
Slight Chance
T-storms
High: 88 °F
Tuesday
Night

Partly Cloudy
Low: 69 °F
Wednesday

Mostly Sunny
High: 92 °F
Wednesday
Night

Partly Cloudy
Low: 71 °F

Detailed Forecast

Tonight

Scattered showers and thunderstorms before 3am, then isolated showers. Mostly cloudy, with a low around 67. South wind 6 to 11 mph. Chance of precipitation is 40%.

Sunday

A chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 88. West wind 6 to 9 mph. Chance of precipitation is 50%.

Sunday Night

Showers and thunderstorms likely before midnight, then a chance of showers. Mostly cloudy, with a low around 67. Northwest wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Memorial Day

A slight chance of showers before 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. North wind 3 to 6 mph. Chance of precipitation is 20%.

Monday Night

A chance of showers after 3am. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 30%.

Tuesday

A chance of showers, with thunderstorms also possible after 9am. Mostly cloudy, with a high near 88. Chance of precipitation is 30%.

Tuesday Night

Partly cloudy, with a low around 69.

Wednesday

Mostly sunny, with a high near 92.

Wednesday Night

Partly cloudy, with a low around 71.

Thursday

A chance of showers after 9am. Partly sunny, with a high near 88. Chance of precipitation is 30%.