Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

74°F

23°C

Humidity	67%
Wind Speed	S 3 mph
Barometer	30.13 in (1021.0 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Last update	19 May 4:56 am EDT

More Information:

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

Extended Forecast for

Cooksville MD

Today
High: 95 °F
Mostly Sunny
Tonight
Low: 71 °F
Partly Cloudy
Wednesday
High: 93 °F
Sunny then
Showers
Wednesday Night
Low: 56 °F
Showers
Thursday
High: 66 °F
Showers
Likely
Thursday Night
Low: 51 °F
Chance
Showers
Friday
High: 62 °F
Showers
Friday Night
Low: 50 °F
Showers
Saturday
High: 67 °F
Showers

Detailed Forecast

Today

Mostly sunny, with a high near 95. West wind 5 to 9 mph.

Tonight

Partly cloudy, with a low around 71. Southwest wind 3 to 5 mph.

Wednesday

A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 93. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 56. North wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 66. North wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

Thursday Night

A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

Friday

Showers. High near 62. Chance of precipitation is 80%.

Friday Night

Showers. Low around 50. Chance of precipitation is 80%.

Saturday

Showers. High near 67. Chance of precipitation is 80%.

Saturday Night

Showers likely, mainly before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

Sunday

A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.