Dangerous Cold Weather for Most of the Country; Rare Southern Winter Storm; Fire Weather Concerns for Southern California

Arctic air is encompassing the eastern two-thirds of the United States. A major winter storm is bringing heavy snow as well as areas of sleet and freezing rain from south Texas through the eastern Carolinas. Moderate to strong Santa Ana winds and low humidity will maintain Critical to Extremely Critical fire weather conditions in southern California. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

19°F

-7°C

Humidity	41%
Wind Speed	W 6 mph
Barometer	30.48 in (1034.8 mb)
Dewpoint	-1°F (-18°C)
Visibility	10.00 mi
Wind Chill	11°F (-12°C)
Last update	21 Jan 1:56 pm EST

More Information:

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

Extended Forecast for

Gaithersburg MD

Cold Weather Advisory January 22, 12:00am until January 22, 11:00am

Click here for hazard details and duration

Cold Weather Advisory

This Afternoon
High: 20 °F
Isolated Snow
Showers
Tonight
Low: 6 °F
Isolated Snow
Showers then
Partly Cloudy
Wednesday
High: 18 °F
Increasing
Clouds
Wednesday Night
Low: 8 °F
Mostly Cloudy
Thursday
High: 30 °F
Mostly Sunny
Thursday Night
Low: 15 °F
Partly Cloudy
Friday
High: 29 °F
Sunny
Friday Night
Low: 10 °F
Partly Cloudy
Saturday
High: 33 °F
Sunny

Detailed Forecast

This Afternoon

Scattered flurries before 5pm, then isolated snow showers after 5pm. Cloudy, with a high near 20. Light west wind.

Tonight

Isolated snow showers before 8pm, then scattered flurries between 8pm and 9pm. Cloudy during the early evening, then gradual clearing, with a low around 6. Wind chill values as low as -8. Light and variable wind becoming northwest 5 to 10 mph after midnight. Chance of precipitation is 20%.

Wednesday

Increasing clouds, with a high near 18. Wind chill values as low as -9. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.

Wednesday Night

Mostly cloudy, with a low around 8. Light south wind.

Thursday

Mostly sunny, with a high near 30. Calm wind becoming south around 5 mph.

Thursday Night

Partly cloudy, with a low around 15.

Friday

Sunny, with a high near 29.

Friday Night

Partly cloudy, with a low around 10.