Severe Weather and Heavy Rainfall in the Midwest and Desert Southwest; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall are possible in the Midwest into the Central Appalachians and the Desert Southwest early this week. Storms are also expected in parts of the northern Plains today. Fire weather and air quality concerns will persist across portions of the West. Mid-summer heat will continue across much of the CONUS this week, especially in the the south-central High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Partly Cloudy

92°F

33°C

Humidity	54%
Wind Speed	Vrbl 6 mph
Barometer	30.02 in (1017.2 mb)
Dewpoint	73°F (23°C)
Visibility	7.00 mi
Heat Index	101°F (38°C)
Last update	10 Aug 1:56 pm EDT

More Information:

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

Extended Forecast for

Brookeville MD

Severe T-storm Watch August 10, 02:56pm until August 10, 09:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch August 10, 02:56pm until August 10, 09:00pm
NOW until 9:00pm Mon
Severe T-storm Watch
This Afternoon
High: 91 °F
Severe
Thunderstorms
Tonight
Low: 72 °F
Severe
Thunderstorms
then Mostly
Cloudy
Tuesday
High: 88 °F
Mostly Sunny
then Showers
Likely
Tuesday Night
Low: 68 °F
Showers
Likely then
Chance
Showers
Wednesday
High: 85 °F
Partly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 69 °F
Chance
Showers
Thursday
High: 86 °F
Slight Chance
Showers then
Slight Chance
T-storms
Thursday Night
Low: 69 °F
Chance
Showers

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, mainly after 4pm. Some of the storms could be severe. Partly sunny, with a high near 91. Southwest wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 7pm. Some of the storms could be severe. Mostly cloudy, with a low around 72. Southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Partly sunny, with a high near 88. West wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Showers and thunderstorms likely before 3am, then a chance of showers after 5am. Mostly cloudy, with a low around 68. Light northwest wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Northwest wind around 5 mph. Chance of precipitation is 20%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 40%.

Thursday

A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Friday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 30%.

Friday Night

Partly cloudy, with a low around 63.

Saturday

Mostly sunny, with a high near 82.