Severe Storms Across the Center of the CONUS; Heat Across Southern U.S.

Scattered severe thunderstorms with heavy rainfall are expected across a portion of the central states through tonight. A few tornadoes, significant damaging winds, very large hail, and flash flooding are possible. The early-season heat across portions of the Southern U.S. will continue for much of this week with more potential record high temperatures. Read More >

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Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Mostly Cloudy

25°C

77°F

Humidity	36%
Wind Speed	W 22 G 31 km/h
Barometer	1011.7 mb (29.85 in)
Dewpoint	9°C (48°F)
Visibility	16 km
Heat Index	26°C (78°F)
Last update	17 May 1:56 pm EDT

More Information:

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

Extended Forecast for

Rockville MD

This
Afternoon

Mostly Sunny
High: 26 °C
Tonight

Mostly Clear
Low: 10 °C
Wednesday

Sunny
High: 24 °C
Wednesday
Night

Showers
Likely
Low: 14 °C
Thursday

Chance
Showers
High: 28 °C
Thursday
Night

Mostly Clear
Low: 17 °C
Friday

Sunny
High: 32 °C
Friday
Night

Partly Cloudy
Low: 21 °C
Saturday

Sunny then
Chance
T-storms
High: 34 °C

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 26. West wind 26 to 29 km/h, with gusts as high as 50 km/h.

Tonight

Mostly clear, with a low around 10. North wind around 11 km/h.

Wednesday

Sunny, with a high near 24. North wind 5 to 8 km/h becoming west in the afternoon.

Wednesday Night

Showers likely, mainly between 8pm and 2am. Increasing clouds, with a low around 14. Southeast wind 10 to 13 km/h. Chance of precipitation is 70%. New precipitation amounts between 2.5 and 5 mm possible.

Thursday

A chance of showers, mainly before 8am. Partly sunny, with a high near 28. West wind 10 to 18 km/h. Chance of precipitation is 30%.

Thursday Night

Mostly clear, with a low around 17.

Friday

Sunny, with a high near 32.

Friday Night

Partly cloudy, with a low around 21.

Saturday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 34. Chance of precipitation is 30%.

Saturday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Partly cloudy, with a low around 20. Chance of precipitation is 30%.

Sunday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 28. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 13. Chance of precipitation is 60%.

Monday

Mostly sunny, with a high near 22.