Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Thunderstorm in Vicinity

87°F

31°C

Humidity	67%
Wind Speed	Vrbl 6 mph
Barometer	29.91 in (1013.6 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	96°F (36°C)
Last update	9 Jul 1:56 pm EDT

More Information:

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

Extended Forecast for

Laytonsville MDSimilar City Names

Flood Watch until July 9, 11:00pm

Click here for hazard details and duration

Flood Watch

Flood Watch until July 9, 11:00pm
NOW until 11:00pm Thu
Flood Watch
This Afternoon
High: 85 °F
Heavy Rain
Tonight
Low: 68 °F
Heavy Rain
then Mostly
Clear
Friday
High: 86 °F
Sunny then
Showers
Likely
Friday Night
Low: 67 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 82 °F
Slight Chance
Showers then
Showers
Likely
Saturday Night
Low: 64 °F
Showers
Likely then
Slight Chance
Showers
Sunday
High: 82 °F
Partly Sunny
Sunday Night
Low: 63 °F
Partly Cloudy

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 85. Southwest wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and possibly a thunderstorm before 8pm, then isolated showers and thunderstorms between 8pm and 9pm. Some of the storms could produce heavy rainfall. Low around 68. Light southwest wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Scattered showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 86. West wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Scattered showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Light west wind. Chance of precipitation is 40%.

Saturday

Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 82. Northwest wind 3 to 6 mph. Chance of precipitation is 60%.

Saturday Night

Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Sunday

Partly sunny, with a high near 82.

Sunday Night

Partly cloudy, with a low around 63.

Monday

Mostly sunny, with a high near 82.

Monday Night

Mostly clear, with a low around 63.

Tuesday

Sunny, with a high near 86.

Tuesday Night

Mostly clear, with a low around 67.