Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

77°F

25°C

Humidity	NA
Wind Speed	Calm
Barometer	29.92 in (1014.1 mb)
Dewpoint	N/A
Visibility	10.00 mi
Last update	18 Jun 2:56 pm EDT

More Information:

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

Extended Forecast for

2 Miles SW Rockville MD

Flood Watch until June 18, 08:00pm

Severe T-storm Watch until June 18, 07:00pm

Click here for hazard details and duration

Flood Watch

Severe T-storm Watch

Flood Watch until June 18, 08:00pm
Severe T-storm Watch until June 18, 07:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 87 °F
Severe
Thunderstorms
Tonight
Low: 72 °F
Partly Cloudy
Juneteenth
High: 91 °F
Sunny then
Heavy Rain
Thursday Night
Low: 65 °F
T-storms
Likely then
Slight Chance
Showers
Friday
High: 85 °F
Sunny
Friday Night
Low: 66 °F
Partly Cloudy
Saturday
High: 90 °F
Sunny
Saturday Night
Low: 70 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly before 5pm. Some of the storms could be severe. Partly sunny, with a high near 87. West wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Partly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

Juneteenth

A slight chance of showers, then showers and thunderstorms likely after 2pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 91. Southwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 65. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Sunny, with a high near 85. Northwest wind around 8 mph.

Friday Night

Partly cloudy, with a low around 66.

Saturday

Sunny, with a high near 90.

Saturday Night

Partly cloudy, with a low around 70.

Sunday

Mostly sunny, with a high near 95.

Sunday Night

Mostly clear, with a low around 75.