Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

23°F

-5°C

Humidity	44%
Wind Speed	NW 10 mph
Barometer	30.20 in (1025.2 mb)
Dewpoint	4°F (-16°C)
Visibility	10.00 mi
Wind Chill	13°F (-11°C)
Last update	28 Jan 10:56 am EST

More Information:

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

Extended Forecast for

Olney MD

Cold Weather Advisory January 28, 07:00pm until January 29, 11:00am

Click here for hazard details and duration

Cold Weather Advisory

Today
High: 19 °F
Chance Snow
Tonight
Low: 5 °F
Slight Chance
Snow
Thursday
High: 21 °F
Sunny
Thursday Night
Low: 5 °F
Mostly Clear
Friday
High: 19 °F
Mostly Sunny
Friday Night
Low: 6 °F
Mostly Cloudy
Saturday
High: 16 °F
Partly Sunny
Saturday Night
Low: 10 °F
Mostly Cloudy
then Chance
Snow
Sunday
High: 23 °F
Mostly Cloudy
then Mostly
Sunny and
Blustery

Detailed Forecast

Today

A chance of snow after 2pm. Increasing clouds, with a high near 19. West wind 6 to 8 mph. Chance of precipitation is 30%.

Tonight

A slight chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 5. Wind chill values as low as -7. West wind 3 to 7 mph. Chance of precipitation is 20%.

Thursday

Sunny, with a high near 21. Wind chill values as low as -7. West wind 7 to 10 mph, with gusts as high as 20 mph.

Thursday Night

Mostly clear, with a low around 5. Wind chill values as low as -4. Northwest wind around 6 mph.

Friday

Mostly sunny, with a high near 19. Northwest wind 5 to 8 mph.

Friday Night

Mostly cloudy, with a low around 6.

Saturday

Partly sunny, with a high near 16.

Saturday Night

A chance of snow after 1am. Mostly cloudy, with a low around 10. Chance of precipitation is 30%.