Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fair

24°F

-4°C

Humidity	52%
Wind Speed	Calm
Barometer	30.21 in (1024.1 mb)
Dewpoint	9°F (-13°C)
Visibility	10.00 mi
Last update	20 Jan 4:56 pm CST

More Information:

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

Extended Forecast for

2 Miles WSW Shannon IL

Winter Weather Advisory January 20, 06:00pm until January 21, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 15 °F
Snow
Wednesday
High: 26 °F
Partly Sunny
then Snow
Likely
Wednesday Night
Low: 7 °F
Chance Snow
then Partly
Cloudy
Thursday
High: 18 °F
Mostly Sunny
Thursday Night
Low: -13 °F
Partly Cloudy
Friday
High: -5 °F
Cold
Friday Night
Low: -12 °F
Mostly Cloudy
Saturday
High: 3 °F
Cold
Saturday Night
Low: -4 °F
Mostly Cloudy

Detailed Forecast

Tonight

Snow, mainly between 9pm and 4am. Low around 15. Southeast wind around 5 mph becoming northwest after midnight. Chance of precipitation is 90%. Total nighttime snow accumulation of 2 to 4 inches possible.

Wednesday

Snow likely, mainly after 5pm. Partly sunny, with a high near 26. Northwest wind 5 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday Night

A chance of snow before 11pm, then a chance of flurries between 11pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 7. Wind chill values as low as -5. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

Thursday

Mostly sunny, with a high near 18. Wind chill values as low as -5. West wind 10 to 15 mph, with gusts as high as 20 mph.

Thursday Night

Partly cloudy, with a low around -13.

Friday

Mostly sunny and cold, with a high near -5.

Friday Night

Mostly cloudy, with a low around -12.

Saturday

Mostly cloudy and cold, with a high near 3.

Saturday Night

Mostly cloudy, with a low around -4.