Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Rain

62°F

17°C

Humidity	100%
Wind Speed	Calm
Barometer	29.86 in (1012.5 mb)
Dewpoint	62°F (17°C)
Visibility	7.00 mi
Last update	11 Oct 5:56 pm EDT

More Information:

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

Extended Forecast for

2 Miles NNE Lisbon MD

Tonight
Low: 59 °F
Showers
Columbus Day
High: 72 °F
Chance
Showers then
Partly Sunny
Monday Night
Low: 56 °F
Partly Cloudy
Tuesday
High: 77 °F
Becoming
Sunny
Tuesday Night
Low: 64 °F
Mostly Clear
Wednesday
High: 79 °F
Sunny
Wednesday Night
Low: 58 °F
Slight Chance
Showers
Thursday
High: 67 °F
Partly Sunny
Thursday Night
Low: 55 °F
Partly Cloudy
then Chance
Showers

Detailed Forecast

Tonight

Showers and possibly a thunderstorm. Low around 59. East wind 8 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Columbus Day

A chance of showers, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 72. North wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

Monday Night

Partly cloudy, with a low around 56. Light northwest wind.

Tuesday

Partly sunny, then gradually becoming sunny, with a high near 77. Calm wind becoming south 5 to 8 mph in the afternoon.

Tuesday Night

Mostly clear, with a low around 64. Southwest wind 5 to 7 mph, with gusts as high as 18 mph.

Wednesday

Sunny, with a high near 79.

Wednesday Night

A slight chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 20%.

Thursday

Partly sunny, with a high near 67.