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Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

73°F

23°C

Humidity	NA
Wind Speed	Calm
Barometer	30.05 in (1018.4 mb)
Dewpoint	N/A
Visibility	8.00 mi
Last update	30 Jul 6:56 am EDT

More Information:

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

Extended Forecast for

Rockville MD

Heat Advisory July 30, 11:00am until July 30, 08:00pm

Click here for hazard details and duration

Heat Advisory

Today
High: 98 °F
Hot
Tonight
Low: 76 °F
Partly Cloudy
then Slight
Chance
T-storms
Thursday
High: 92 °F
Chance
Showers then
T-storms
Thursday Night
Low: 69 °F
T-storms then
Showers
Likely
Friday
High: 76 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 62 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 79 °F
Mostly Sunny
Saturday Night
Low: 60 °F
Mostly Clear
Sunday
High: 81 °F
Mostly Sunny

Detailed Forecast

Today

Sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind becoming southwest around 6 mph in the afternoon.

Tonight

A slight chance of showers and thunderstorms between midnight and 1am. Mostly clear, with a low around 76. Light south wind. Chance of precipitation is 20%.

Thursday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 92. Heat index values as high as 101. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 69. Northeast wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Friday

A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 76. Northeast wind 7 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 79.

Saturday Night

Mostly clear, with a low around 60.

Sunday

Mostly sunny, with a high near 81.

Sunday Night

Partly cloudy, with a low around 61.

Monday

Mostly sunny, with a high near 84.

Monday Night

Partly cloudy, with a low around 63.