Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Lewis University Airport (KLOT)

Lat: 41.6°NLon: 88.1°WElev: 669ft.

Overcast

30°F

-1°C

Humidity	64%
Wind Speed	NW 12 G 23 mph
Barometer	29.89 in
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	20°F (-7°C)
Last update	10 Dec 5:45 pm CST

More Information:

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

Extended Forecast for

Lockport IL

Tonight
Low: 20 °F
Chance Snow
Thursday
High: 26 °F
Mostly Cloudy
Thursday Night
Low: 22 °F
Snow Likely
Friday
High: 28 °F
Slight Chance
Snow then
Mostly Cloudy
Friday Night
Low: 8 °F
Slight Chance
Snow Showers
then Mostly
Cloudy
Saturday
High: 11 °F
Snow Likely
Saturday Night
Low: -4 °F
Slight Chance
Snow then
Partly Cloudy
Sunday
High: 9 °F
Cold
Sunday Night
Low: -3 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of snow, mainly before midnight, then a slight chance of flurries after 3am. Cloudy, with a low around 20. Northwest wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

Thursday

Mostly cloudy, with a high near 26. West northwest wind around 5 mph becoming south in the afternoon.

Thursday Night

Snow likely, mainly before midnight. Cloudy, with a low around 22. Calm wind becoming east around 5 mph after midnight. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

Friday

A 20 percent chance of snow before noon. Mostly cloudy, with a high near 28. Northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph.

Friday Night

A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 8. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.

Saturday

Snow likely, mainly after noon. Mostly cloudy, with a high near 11. Chance of precipitation is 60%.

Saturday Night

A 20 percent chance of snow before midnight. Partly cloudy, with a low around -4.

Sunday

Sunny and cold, with a high near 9.

Sunday Night

Mostly clear, with a low around -3.

Monday

Mostly sunny, with a high near 22.

Monday Night

Mostly cloudy, with a low around 16.