Heavy Rainfall and Flooding in the Southwest and Along the East Coast

A multi-day heavy rainfall event is set to begin across New Mexico into west Texas Tuesday through Wednesday. Flash flooding and debris flows in the vicinity of burn scars will also be possible. A strong coastal low will develop offshore of the Mid-Atlantic coast midweek, bringing heavy rainfall, strong winds and coastal flooding to much of the East Coast through Friday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Rain

59°F

15°C

Humidity	NA
Wind Speed	Vrbl 3 mph
Barometer	30.13 in (1021.7 mb)
Dewpoint	N/A
Visibility	6.00 mi
Last update	22 Sep 4:56 am EDT

More Information:

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

Extended Forecast for

Rockville MD

Overnight
Low: 60 °F
Showers
Tuesday
High: 61 °F
Showers and
Patchy Fog
Tuesday Night
Low: 54 °F
Showers and
Patchy Fog
Wednesday
High: 62 °F
Chance
Showers
Wednesday Night
Low: 53 °F
Slight Chance
Showers
Thursday
High: 63 °F
Partly Sunny
Thursday Night
Low: 50 °F
Partly Cloudy
Friday
High: 66 °F
Mostly Sunny
Friday Night
Low: 52 °F
Partly Cloudy

Detailed Forecast

Overnight

Showers. Low around 60. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

Tuesday

Showers. Patchy fog before 10am, then patchy fog after 11am. High near 61. Northeast wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday Night

Showers. Patchy fog before 11pm. Low around 54. Northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday

A chance of showers, mainly before 1pm. Cloudy, with a high near 62. Northeast wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

Wednesday Night

A slight chance of showers before 2am. Mostly cloudy, with a low around 53. Northeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Thursday

Partly sunny, with a high near 63.

Thursday Night

Partly cloudy, with a low around 50.

Friday

Mostly sunny, with a high near 66.

Friday Night

Partly cloudy, with a low around 52.

Saturday

Mostly sunny, with a high near 67.

Saturday Night

Partly cloudy, with a low around 53.