Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

77°F

25°C

Humidity	56%
Wind Speed	Calm
Barometer	30.06 in (1019.1 mb)
Dewpoint	60°F (16°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	25 Aug 6:56 pm EDT

More Information:

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

Extended Forecast for

Rockville MD

Tonight
Low: 63 °F
Partly Cloudy
Wednesday
High: 87 °F
Increasing
Clouds
Wednesday Night
Low: 70 °F
Mostly Cloudy
then Chance
Showers
Thursday
High: 86 °F
Chance
Showers then
Showers
Likely
Thursday Night
Low: 68 °F
Showers
Likely
Friday
High: 84 °F
Slight Chance
Showers then
Chance
T-storms
Friday Night
Low: 66 °F
Chance
T-storms
Saturday
High: 83 °F
Partly Sunny
then Slight
Chance
Showers
Saturday Night
Low: 68 °F
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 63. Northwest wind around 6 mph becoming calm in the evening.

Wednesday

Increasing clouds, with a high near 87. Calm wind becoming south 5 to 8 mph in the afternoon.

Wednesday Night

A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 70. South wind around 8 mph. Chance of precipitation is 30%.

Thursday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. South wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

Friday

A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

Saturday

A slight chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.

Saturday Night

Partly cloudy, with a low around 68.

Sunday

Mostly sunny, with a high near 86.

Sunday Night

Partly cloudy, with a low around 70.

Monday

Sunny, with a high near 90.