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

0°F

-18°C

Humidity	78%
Wind Speed	SW 7 mph
Barometer	30.34 in
Dewpoint	-6°F (-21°C)
Visibility	10.00 mi
Wind Chill	-13°F (-25°C)
Last update	20 Jan 8:45 am CST

More Information:

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

Extended Forecast for

6 Miles NE Avalon WI

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

Click here for hazard details and duration

Winter Weather Advisory

Today
High: 15 °F
Increasing
Clouds
Tonight
Low: 13 °F
Heavy Snow
Wednesday
High: 23 °F
Slight Chance
Snow then
Mostly Cloudy
Wednesday Night
Low: 5 °F
Snow Showers
Likely then
Mostly Cloudy
Thursday
High: 14 °F
Partly Sunny
Thursday Night
Low: -14 °F
Partly Cloudy
Friday
High: -5 °F
Cold
Friday Night
Low: -17 °F
Partly Cloudy
Saturday
High: 0 °F
Partly Sunny
then Slight
Chance Snow

Detailed Forecast

Today

Increasing clouds, with a high near 15. Wind chill values between -5 and -15. West wind around 10 mph.

Tonight

Snow, mainly after 10pm. The snow could be heavy at times. Low around 13. South wind around 5 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday

A 20 percent chance of snow before 9am. Mostly cloudy, with a high near 23. West wind 5 to 15 mph.

Wednesday Night

Snow showers likely before midnight. Mostly cloudy, with a low around 5. Wind chill values between -10 and zero. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Thursday

Partly sunny, with a high near 14. West wind 10 to 15 mph.

Thursday Night

Partly cloudy, with a low around -14. Northwest wind around 10 mph.

Friday

Mostly sunny and cold, with a high near -5. Northwest wind around 10 mph.

Friday Night

Partly cloudy, with a low around -17. Northwest wind around 5 mph.

Saturday

A 20 percent chance of snow after noon. Partly sunny and cold, with a high near 0.

Saturday Night

A 30 percent chance of snow. Mostly cloudy, with a low around -10.