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 Fog/Mist

60°F

16°C

Humidity	100%
Wind Speed	Vrbl 7 mph
Barometer	30.06 in (1019.3 mb)
Dewpoint	60°F (16°C)
Visibility	3.00 mi
Last update	11 Oct 11:56 am EDT

More Information:

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

Extended Forecast for

Rockville MD

This Afternoon
High: 69 °F
Showers
Tonight
Low: 60 °F
Showers
Columbus Day
High: 71 °F
Showers
Likely then
Partly Sunny
Monday Night
Low: 55 °F
Mostly Clear
Tuesday
High: 77 °F
Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 79 °F
Sunny
Wednesday Night
Low: 57 °F
Partly Cloudy
Thursday
High: 68 °F
Partly Sunny

Detailed Forecast

This Afternoon

Showers, with thunderstorms also possible after 2pm. High near 69. East wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and possibly a thunderstorm. Low around 60. East wind around 6 mph becoming light and variable. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Columbus Day

Showers likely, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 71. Northwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

Monday Night

Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

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 63.

Wednesday

Sunny, with a high near 79.

Wednesday Night

Partly cloudy, with a low around 57.

Thursday

Partly sunny, with a high near 68.