Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Rain

61°F

16°C

Humidity	NA
Wind Speed	Calm
Barometer	30.10 in (1020.6 mb)
Dewpoint	N/A
Visibility	0.25 mi
Last update	25 May 5:56 am EDT

More Information:

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

Extended Forecast for

Derwood MD

Dense Fog Advisory until May 25, 09:00am

Click here for hazard details and duration

...

Dense Fog Advisory until May 25, 09:00am
NOW until 9:00am Mon
Dense Fog Advisory
Memorial Day
High: 75 °F
Showers and
Areas Dense
Fog
Tonight
Low: 62 °F
Chance
Showers and
Patchy Fog
Tuesday
High: 78 °F
Chance
Showers and
Patchy Fog
Tuesday Night
Low: 64 °F
Mostly Cloudy
then Chance
Showers
Wednesday
High: 78 °F
Chance
Showers
Wednesday Night
Low: 63 °F
Slight Chance
Showers
Thursday
High: 79 °F
Sunny
Thursday Night
Low: 55 °F
Mostly Clear

Detailed Forecast

Memorial Day

Showers, with thunderstorms also possible after 2pm. Areas of dense fog before 10am. High near 75. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%.

Tuesday

A chance of showers between 11am and 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 78. Light and variable wind. Chance of precipitation is 30%.

Tuesday Night

A chance of showers after 2am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%.

Wednesday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%.

Wednesday Night

A slight chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 20%.

Thursday

Sunny, with a high near 79.

Thursday Night

Mostly clear, with a low around 55.

Friday

Sunny, with a high near 76.

Friday Night

Partly cloudy, with a low around 56.

Saturday

Mostly sunny, with a high near 73.