Severe Weather in the Northeast; Intense Heat in the Mid-Atlantic and Portions of the West

Severe thunderstorms and heavy rainfall are likely across portions of the Northeast. An intense heat wave will continue across the Mid-Atlantic, where record high temperatures are likely. In the West, triple-digit high temperatures are possible in central and southern California, Arizona, and Utah. Monsoon-like conditions may produce isolated flash flooding in the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

96°F

36°C

Humidity	44%
Wind Speed	SW 9 mph
Barometer	29.75 in (1007.8 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	23 Jun 2:56 pm EDT

More Information:

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

Extended Forecast for

3 Miles N Clarksburg MD

Heat Advisory until June 23, 07:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory until June 23, 07:00pm
NOW until 7:00pm Sun
Heat Advisory
This Afternoon
High: 95 °F
Scattered
Showers
Tonight
Low: 71 °F
T-storms
Likely then
Isolated
Showers
Monday
High: 83 °F
Sunny
Monday Night
Low: 62 °F
Mostly Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 70 °F
Partly Cloudy
Wednesday
High: 96 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 71 °F
T-storms
Likely

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms. Mostly cloudy, with a high near 95. Southwest wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms likely before 11pm, then isolated showers between 11pm and 1am. Mostly cloudy, with a low around 71. West wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

Sunny, with a high near 83. Northwest wind 15 to 18 mph, with gusts as high as 26 mph.

Monday Night

Mostly clear, with a low around 62. Northwest wind 6 to 11 mph.

Tuesday

Sunny, with a high near 89. Southwest wind 5 to 7 mph.

Tuesday Night

Partly cloudy, with a low around 70.

Wednesday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 40%.

Wednesday Night

Showers and thunderstorms likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.