Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

68°F

20°C

Humidity	84%
Wind Speed	Calm
Barometer	30.23 in (1024.7 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Last update	29 Aug 9:56 pm EDT

More Information:

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

Extended Forecast for

Cooksville MD

Tonight
Low: 66 °F
Partly Cloudy
Sunday
High: 88 °F
Patchy Fog
then Slight
Chance
T-storms
Sunday Night
Low: 70 °F
Partly Cloudy
then Patchy
Fog
Monday
High: 90 °F
Mostly Sunny
Monday Night
Low: 73 °F
Slight Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 94 °F
Mostly Sunny
Tuesday Night
Low: 75 °F
Partly Cloudy
Wednesday
High: 95 °F
Mostly Sunny
Wednesday Night
Low: 75 °F
Slight Chance
T-storms

Detailed Forecast

Tonight

Partly cloudy, with a low around 66. Light south wind.

Sunday

A slight chance of showers and thunderstorms after 1pm. Patchy fog before 9am. Otherwise, mostly sunny, with a high near 88. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.

Sunday Night

Patchy fog after 1am. Otherwise, partly cloudy, with a low around 70. Light south wind.

Monday

Mostly sunny, with a high near 90. Light northwest wind.

Monday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.

Tuesday

Mostly sunny, with a high near 94.

Tuesday Night

Partly cloudy, with a low around 75.

Wednesday

Mostly sunny, with a high near 95.

Wednesday Night

A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.

Thursday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.