Flooding Threat Continues in Portions of Texas; Poor Air Quality in the Great Lakes through the Mid-Atlantic

Widespread life-threatening flash and urban flooding continues in south-central Texas, with considerable flooding impacts possible across central Texas. Wildfire smoke is impacting air quality across much of the Great Lakes region into southern New England and the Mid-Atlantic. Monsoonal thunderstorms may produce isolated to scattered flash flooding across the Southwest into the Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast with Haze

74°F

23°C

Humidity	85%
Wind Speed	Calm
Barometer	30.07 in (1018.9 mb)
Dewpoint	69°F (21°C)
Visibility	5.00 mi
Last update	17 Jul 10:56 pm EDT

More Information:

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

Extended Forecast for

Rockville MD

Tonight
Low: 74 °F
Slight Chance
T-storms
Saturday
High: 90 °F
Areas Smoke
then T-storms
Likely
Saturday Night
Low: 72 °F
T-storms
Likely then
Chance
Showers
Sunday
High: 84 °F
Sunny
Sunday Night
Low: 65 °F
Mostly Clear
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 69 °F
Partly Cloudy
Tuesday
High: 89 °F
Mostly Cloudy
then Chance
T-storms
Tuesday Night
Low: 72 °F
Showers
Likely

Detailed Forecast

Tonight

A slight chance of showers and thunderstorms after 2am. Widespread smoke. Mostly cloudy, with a low around 74. Light south wind. Chance of precipitation is 20%.

Saturday

Showers and thunderstorms likely, mainly after 2pm. Areas of smoke before noon. Mostly cloudy, with a high near 90. Southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Mostly cloudy through mid morning, then becoming sunny, with a high near 84. Northwest wind around 8 mph.

Sunday Night

Mostly clear, with a low around 65. Light northeast wind.

Monday

Mostly sunny, with a high near 85.

Monday Night

Partly cloudy, with a low around 69.

Tuesday

A chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 40%.

Tuesday Night

A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.

Wednesday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.

Wednesday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

Thursday

Sunny, with a high near 82.

Thursday Night

Mostly clear, with a low around 64.

Friday

A slight chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 20%.