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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

16°F

-9°C

Humidity	57%
Wind Speed	S 6 mph
Barometer	30.21 in
Dewpoint	3°F (-16°C)
Visibility	10.00 mi
Wind Chill	7°F (-14°C)
Last update	20 Jan 4:45 pm CST

More Information:

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

Extended Forecast for

2 Miles W Darien WI

Extreme Cold Watch January 23, 12:00am until January 24, 12:00pm

Winter Weather Advisory January 20, 09:00pm until January 21, 06:00am

Click here for hazard details and duration

Extreme Cold Watch

Winter Weather Advisory

Tonight
Low: 11 °F
Heavy Snow
Wednesday
High: 24 °F
Mostly Cloudy
then Snow
Likely
Wednesday Night
Low: 5 °F
Snow Likely
then Mostly
Cloudy
Thursday
High: 15 °F
Mostly Sunny
Thursday Night
Low: -15 °F
Partly Cloudy
Friday
High: -6 °F
Cold
Friday Night
Low: -16 °F
Partly Cloudy
Saturday
High: 1 °F
Cold
Saturday Night
Low: -7 °F
Chance Snow

Detailed Forecast

Tonight

Snow, mainly between 9pm and 5am. The snow could be heavy at times. Low around 11. South wind around 5 mph becoming northwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.

Wednesday

Snow likely, mainly after 5pm. Mostly cloudy, with a high near 24. Northwest wind 5 to 15 mph becoming southwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow likely, mainly before 9pm. Mostly cloudy, with a low around 5. Wind chill values between -10 and zero. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

Thursday

Mostly sunny, with a high near 15. Wind chill values between -10 and zero. West wind 10 to 15 mph.

Thursday Night

Partly cloudy, with a low around -15. Northwest wind 10 to 15 mph.

Friday

Mostly sunny and cold, with a high near -6. Northwest wind 5 to 15 mph.

Friday Night

Partly cloudy, with a low around -16. Northwest wind around 5 mph.

Saturday

Mostly cloudy and cold, with a high near 1. Northwest wind around 5 mph.

Saturday Night

A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around -7.