Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Northern Plains and Upper Midwest

Dangerous heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms will produce damaging winds and heavy rainfall over portions of the northern/central Plains into the mid/upper-Mississippi Valleys today. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

A Few Clouds

81°F

27°C

Humidity	54%
Wind Speed	NW 13 G 17 mph
Barometer	29.88 in (1012.5 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	30 Jul 12:56 pm EDT

More Information:

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

Extended Forecast for

Sandy Spring MD

This Afternoon
High: 83 °F
Partly Sunny
Tonight
Low: 65 °F
Partly Cloudy
Friday
High: 86 °F
Sunny
Friday Night
Low: 67 °F
Mostly Cloudy
Saturday
High: 88 °F
Partly Sunny
Saturday Night
Low: 69 °F
Mostly Cloudy
then Chance
Showers
Sunday
High: 82 °F
Showers
Likely
Sunday Night
Low: 67 °F
Showers
Likely
Monday
High: 83 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Partly sunny, with a high near 83. Northwest wind around 14 mph, with gusts as high as 24 mph.

Tonight

Partly cloudy, with a low around 65. North wind around 6 mph becoming calm in the evening.

Friday

Sunny, with a high near 86. Light northwest wind.

Friday Night

Mostly clear during the early evening, then becoming mostly cloudy, with a low around 67. Calm wind.

Saturday

Partly sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the afternoon.

Saturday Night

A chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Sunday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

Monday

A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.

Monday Night

A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

Tuesday Night

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

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.