Thunderstorms and Heavy Rainfall from the Plains to the Mid-Atlantic

Severe thunderstorms producing damaging winds are most likely over parts of the Dakotas into Minnesota from this afternoon into the overnight, with other isolated storms producing hail or wind over the northern High Plains. In the Northern Plains into the Upper Great Lakes and Mid-Atlantic, heavy to excessive rain may bring flash and urban flooding through Wednesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

74°F

23°C

Humidity	100%
Wind Speed	Calm
Barometer	30.06 in (1018.8 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Last update	7 Jul 11:56 am EDT

More Information:

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

Extended Forecast for

Rockville MD

This Afternoon
High: 82 °F
Scattered
T-storms
Tonight
Low: 69 °F
Showers
Likely and
Patchy Fog
Wednesday
High: 81 °F
Slight Chance
Showers and
Patchy Fog
Wednesday Night
Low: 71 °F
Chance
Showers then
Showers
Likely
Thursday
High: 85 °F
Showers
Likely then
T-storms
Thursday Night
Low: 70 °F
Showers then
Slight Chance
Showers
Friday
High: 88 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 70 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 85 °F
Slight Chance
Showers then
Chance
T-storms

Detailed Forecast

This Afternoon

Isolated showers, then scattered showers and thunderstorms after 3pm. Mostly cloudy, with a high near 82. Light northeast wind. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms likely before 2am, then a chance of showers. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 69. East wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday

A slight chance of showers before 1pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 81. East wind 3 to 6 mph. Chance of precipitation is 20%.

Wednesday Night

A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 71. South wind 3 to 5 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 85. South wind 5 to 7 mph. Chance of precipitation is 90%.

Thursday Night

Showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Low around 70. Chance of precipitation is 80%.

Friday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.

Saturday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

Sunday

A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.

Sunday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.

Monday

A slight chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 20%.