Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

72°F

22°C

Humidity	NA
Wind Speed	Calm
Barometer	29.62 in (1003.8 mb)
Dewpoint	N/A
Visibility	10.00 mi
Last update	28 Jul 7:56 pm EDT

More Information:

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

Extended Forecast for

Glenelg MD

Tonight
Low: 64 °F
Severe
Thunderstorms
then Mostly
Clear
Wednesday
High: 81 °F
Mostly Sunny
Wednesday Night
Low: 64 °F
Mostly Clear
Thursday
High: 81 °F
Mostly Sunny
Thursday Night
Low: 63 °F
Partly Cloudy
Friday
High: 84 °F
Sunny
Friday Night
Low: 66 °F
Partly Cloudy
Saturday
High: 86 °F
Partly Sunny
Saturday Night
Low: 68 °F
Slight Chance
T-storms

Detailed Forecast

Tonight

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and midnight. Some of the storms could be severe. Mostly cloudy, then gradually becoming mostly clear, with a low around 64. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

Mostly sunny, with a high near 81. Northwest wind 9 to 13 mph, with gusts as high as 23 mph.

Wednesday Night

Mostly clear, with a low around 64. Northwest wind around 9 mph, with gusts as high as 20 mph.

Thursday

Mostly sunny, with a high near 81. Northwest wind around 11 mph, with gusts as high as 21 mph.

Thursday Night

Partly cloudy, with a low around 63. Northwest wind 3 to 6 mph.

Friday

Sunny, with a high near 84.

Friday Night

Partly cloudy, with a low around 66.

Saturday

Partly sunny, with a high near 86.

Saturday Night

A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 20%.

Sunday

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 30%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.

Monday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

Tuesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.