Flood Threat For Several Locations Today

The active monsoon season will continue the rest of the week and the flood threat today stretches from the Arizona to portions of the Intermountain West. Meanwhile, a humid and moist air mass ahead of a cold front may result in heavy rain and flooding from the Mid-Atlantic to the eastern Ohio and Tennessee Valleys. Finally, slow moving storms may produce flooding for the central Gulf Coast states. Read More >

Hazardous Weather Conditions

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Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

84°F

29°C

Humidity	72%
Wind Speed	W 8 mph
Barometer	30.11 in (1020.5 mb)
Dewpoint	74°F (23°C)
Visibility	NA
Heat Index	91°F (33°C)
Last update	10 Aug 10:56 am EDT

More Information:

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

Extended Forecast for

Gaithersburg MD

Flood Watch August 10, 02:00pm until August 10, 11:00pm

Click here for hazard details and duration

Flood Watch

Today

Heavy Rain
High: 90 °F
Tonight

T-storms then
Chance
T-storms
Low: 70 °F
Thursday

Slight Chance
T-storms then
Sunny
High: 86 °F
Thursday
Night

Partly Cloudy
Low: 65 °F
Friday

Sunny
High: 81 °F
Friday
Night

Mostly Clear
Low: 58 °F
Saturday

Sunny
High: 81 °F
Saturday
Night

Mostly Clear
Low: 59 °F
Sunday

Mostly Sunny
High: 83 °F

Detailed Forecast

Today

Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 5pm. Some of the storms could produce gusty winds and heavy rain. High near 90. Northwest wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

Showers and possibly a thunderstorm before 8pm, then showers and thunderstorms likely, mainly between 8pm and 11pm. Low around 70. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday

A slight chance of showers and thunderstorms before 11am. Mostly sunny, with a high near 86. Northwest wind around 7 mph. Chance of precipitation is 20%.

Thursday Night

Partly cloudy, with a low around 65. Northwest wind around 6 mph.

Friday

Sunny, with a high near 81. North wind 7 to 10 mph.

Friday Night

Mostly clear, with a low around 58.

Saturday

Sunny, with a high near 81.

Saturday Night

Mostly clear, with a low around 59.

Sunday

Mostly sunny, with a high near 83.