Significant Severe Weather, Dangerous Heat and Extremely Critical Fire Weather Conditions Across the Southern U.S.

Tornadoes (some strong), extreme hail, and widespread wind damage are forecast over parts of the central and southern Plains Saturday afternoon through Saturday night. A Moderate Risk (level 4 of 5) for severe storms has been issued. Strong winds and low relative humidity will contribute to extremely critical fire weather Saturday in the Southwest. Dangerous heat continues in South Texas. Read More >

Hazardous Weather Conditions

Air Quality Alert

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

76°F

24°C

Humidity	77%
Wind Speed	NW 3 mph
Barometer	29.91 in (1013.8 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	25 May 8:56 am EDT

More Information:

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

Extended Forecast for

Gaithersburg MD

Today
High: 86 °F
Mostly Sunny
then Isolated
T-storms
Tonight
Low: 66 °F
Scattered
Showers then
Mostly Cloudy
Sunday
High: 85 °F
Partly Sunny
then Chance
Showers
Sunday Night
Low: 67 °F
Chance
Showers
Memorial Day
High: 83 °F
Showers
Likely then
T-storms
Monday Night
Low: 63 °F
T-storms then
Chance
Showers
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 59 °F
Mostly Clear
Wednesday
High: 75 °F
Sunny then
Chance
Showers

Detailed Forecast

Today

Isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 20%.

Tonight

Scattered showers and thunderstorms, mainly between 8pm and 11pm. Mostly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

Sunday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 40%.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind around 6 mph. Chance of precipitation is 40%.

Memorial Day

Showers and possibly a thunderstorm. High near 83. South wind 8 to 10 mph. Chance of precipitation is 90%.

Monday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 63. Chance of precipitation is 80%.

Tuesday

Sunny, with a high near 79.

Tuesday Night

Mostly clear, with a low around 59.

Wednesday

A chance of showers after 2pm. Sunny, with a high near 75. Chance of precipitation is 30%.

Wednesday Night

A chance of showers before 8pm. Mostly clear, with a low around 54. Chance of precipitation is 30%.

Thursday

Sunny, with a high near 72.

Thursday Night

Mostly clear, with a low around 51.