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

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Current conditions at

Madison, Dane County Regional-Truax Field (KMSN)

Lat: 43.14°NLon: 89.35°WElev: 860ft.

Light Snow Fog/Mist

14°F

-10°C

Humidity	88%
Wind Speed	Calm
Barometer	29.94 in (1015.8 mb)
Dewpoint	11°F (-12°C)
Visibility	3.00 mi
Last update	21 Jan 3:53 am CST

More Information:

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

Extended Forecast for

3 Miles SSW Rockdale WI

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

Winter Weather Advisory January 21, 04:14am until January 21, 06:00am

Click here for hazard details and duration

Extreme Cold Watch

Winter Weather Advisory

Winter Weather Advisory January 21, 04:14am until January 21, 06:00am
NOW until 6:00am Wed
Winter Weather Advisory
Overnight
Low: 11 °F
Snow Likely
Wednesday
High: 24 °F
Slight Chance
Snow then
Snow Showers
Wednesday Night
Low: 5 °F
Snow Showers
and Patchy
Blowing Snow
Thursday
High: 17 °F
Mostly Sunny
then Slight
Chance Snow
Showers
Thursday Night
Low: -16 °F
Partly Cloudy
Friday
High: -7 °F
Cold
Friday Night
Low: -17 °F
Partly Cloudy
Saturday
High: -1 °F
Cold

Detailed Forecast

Overnight

Snow likely, mainly before 5am. Cloudy, with a low around 11. Calm wind becoming west around 5 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 1 to 3 inches possible.

Wednesday

A slight chance of snow before 3pm, then snow showers, mainly after 3pm. High near 24. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday Night

Snow showers, mainly before 9pm. Patchy blowing snow before 3am. Low around 5. Wind chill values between -10 and zero. Breezy, with a west wind 10 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Thursday

A 20 percent chance of snow showers after 3pm. Mostly sunny, with a high near 17. Wind chill values between -10 and zero. West wind 10 to 15 mph, with gusts as high as 25 mph.

Thursday Night

Partly cloudy, with a low around -16. Northwest wind around 15 mph, with gusts as high as 30 mph.

Friday

Sunny and cold, with a high near -7. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

Friday Night

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

Saturday

Partly sunny 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 -9.

Sunday

A 20 percent chance of snow. Partly sunny and cold, with a high near 8.