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Aztalan, Wisconsin Weather Forecast
Aztalan, Wisconsin Weather
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Weather Forecast for Aztalan, Wisconsin : Jefferson County
Issued: 2:41 am CST Jan 21, 2026 Latitude: 43.0727787 Longitude: -88.8623285 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
100% chance of snow on Overnight 80% chance of snow on Wednesday 20% chance of snow on Thursday Sunny on Friday Partly Sunny on Saturday 20% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday
Low: 9 °F High: 24°F High: 17°F High: -8°F High: -1°F High: 8°F High: 11°F High: 19°F
Low: 4 °F Low: -16°F Low: -18°F Low: -9°F Low: -7°F Low: 0°F  
Snow Snow Snow Sunny Partly Sunny Snow Sunny Mostly Sunny
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Current Conditions at
MADISON - (KMSN)
12°
Cloudy
Light Snow Mist
as of 2:17 AM CST
Rel. Humidity: 92%
Dew Point: 10°F
Visibility: 3 Miles
Pressure: 29.98 in.
Flight Rule: MVFR
Wind Data
3 MPH
120° Southeast
Cloud Level(s): Solid Overcast at 4400ft
100% chance of snow Overnight Overnight... Snow, mainly before 5am. Low around 9. South wind around 5 mph becoming calm. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 2 inches possible.

80% chance of snow Wednesday Wednesday... A slight chance of snow before 3pm, then snow showers, mainly after 3pm. High near 24. Light northwest wind becoming west 10 to 15 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

90% chance of blowing snow Wednesday Night Wednesday Night... Snow showers, mainly before 9pm. Patchy blowing snow before 3am. Low around 4. 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.

20% chance of snow Thursday 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.

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

Sunny on Friday Friday... Sunny and cold, with a high near -8. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around -18. Northwest wind around 5 mph becoming calm after midnight.

Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near -1. Calm wind becoming northwest around 5 mph.

30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around -9.

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

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -7.

Sunny on Monday Monday... Sunny, with a high near 11.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 0.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 19.

Sun Almanac for Aztalan, Wisconsin
Sunrise: 07:20 AM
Sunset: 4:53 PM
Civil Sunrise:06:49 AM
Civil Sunset: 5:24 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:33 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.