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

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Overcast

12°F

-11°C

Humidity	61%
Wind Speed	S 5 mph
Barometer	30.18 in (1024.2 mb)
Dewpoint	1°F (-17°C)
Visibility	10.00 mi
Wind Chill	4°F (-16°C)
Last update	20 Jan 5:53 pm CST

More Information:

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

Extended Forecast for

Poynette WI

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

Click here for hazard details and duration

Extreme Cold Watch

Tonight
Low: 9 °F
Snow
Wednesday
High: 23 °F
Mostly Cloudy
then Snow
Likely
Wednesday Night
Low: 5 °F
Snow Likely
then Partly
Cloudy
Thursday
High: 15 °F
Mostly Sunny
Thursday Night
Low: -15 °F
Partly Cloudy
Friday
High: -5 °F
Cold
Friday Night
Low: -16 °F
Partly Cloudy
Saturday
High: 2 °F
Cold
Saturday Night
Low: -7 °F
Mostly Cloudy
then Slight
Chance Snow

Detailed Forecast

Tonight

Snow, mainly before 5am. Low around 9. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.

Wednesday

Snow likely, mainly after 4pm. Mostly cloudy, with a high near 23. Southwest wind 5 to 15 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow likely, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, 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 around an 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

Sunny and cold, with a high near -5. Northwest wind 5 to 10 mph.

Friday Night

Partly cloudy, with a low around -16. Northwest wind around 5 mph becoming calm after midnight.

Saturday

Mostly sunny and cold, with a high near 2. Calm wind becoming west around 5 mph.

Saturday Night

A 20 percent chance of snow after midnight. Mostly cloudy, with a low around -7.