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Sullivan, Wisconsin Weather Forecast
Sullivan, Wisconsin Weather
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Weather Forecast for Sullivan, Wisconsin : Jefferson County
Issued: 4:52 pm CST Dec 5, 2025 Latitude: 43.0127852 Longitude: -88.5881562 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
20% chance of snow on This Afternoon 60% chance of freezing rain & snow on Tonight Partly Sunny on Saturday 30% chance of snow on Sunday 20% chance of snow on Monday 20% chance of snow on Tuesday 60% chance of snow on Wednesday 30% chance of snow on Thursday 20% chance of snow on Friday
High: 27°F Low: 17°F High: 23°F High: 20°F High: 22°F High: 34°F High: 34°F High: 22°F High: 17°F
Low: 15°F Low: 0 °F Low: 13°F Low: 24°F Low: 9°F Low: 6°F  
Snow Freezing Rain & Snow Partly Sunny Snow Snow Snow Snow Snow Snow
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Current Conditions at
WATERTOWN - (KRYV)
25°
Feels like 13°F
Cloudy
as of 4:55 PM CST
Rel. Humidity: 68%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: MVFR
Wind Data
13 MPH
Gust: 18 MPH
210° Southwest
Cloud Level(s): Broken at 2500ft, Broken at 3600ft, Solid Overcast at 4200ft
Current Conditions at
BURLINGTON MUNICIPAL AIR - (KBUU)
25°
Feels like 13°F
Cloudy
as of 4:55 PM CST
Rel. Humidity: 62%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: VFR
Wind Data
13 MPH
220° Southwest
Cloud Level(s): Scattered at 2800ft, Broken at 4000ft, Solid Overcast at 4700ft
Current Conditions at
JUNEAU - (KUNU)
23°
Feels like 11°F
Cloudy
as of 4:59 PM CST
Rel. Humidity: 73%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.71 in.
Flight Rule: MVFR
Wind Data
12 MPH
200° South
Cloud Level(s): Scattered at 2200ft, Broken at 3000ft, Solid Overcast at 5500ft
20% chance of snow This Afternoon This Afternoon... A 20 percent chance of snow. Cloudy, with a high near 27. Southwest wind around 10 mph.
60% chance of freezing rain & snow Tonight Tonight... Snow likely, possibly mixing with freezing rain after 8pm, then gradually ending. Cloudy, with a low around 17. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 23. Northwest wind 5 to 10 mph becoming light and variable in the afternoon.
80% chance of snow Saturday Night Saturday Night... Snow, mainly after midnight. Low around 15. Calm wind becoming north around 5 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Mostly sunny, with a high near 20. North wind 5 to 10 mph.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 0. North wind around 5 mph becoming calm in the evening.
20% chance of snow Monday Monday... A 20 percent chance of snow before noon. Mostly cloudy, with a high near 22. Calm wind becoming southwest around 5 mph in the afternoon.
50% chance of snow Monday Night Monday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 13. South wind 5 to 10 mph.
20% chance of snow Tuesday Tuesday... A 20 percent chance of snow after noon. Mostly cloudy, with a high near 34.
80% chance of rain & snow Tuesday Night Tuesday Night... Rain and snow, becoming all snow after midnight. Low around 24. Chance of precipitation is 80%.
60% chance of snow Wednesday Wednesday... Snow likely. Cloudy, with a high near 34. Chance of precipitation is 60%.
30% chance of snow Wednesday Night Wednesday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 9.
30% chance of snow Thursday Thursday... A 30 percent chance of snow. Partly sunny, with a high near 22.
30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 6.
20% chance of snow Friday Friday... A 20 percent chance of snow. Partly sunny, with a high near 17.
Current Radar Image


Sun Almanac for Sullivan, Wisconsin
Sunrise: 07:11 AM
Sunset: 4:20 PM
Civil Sunrise:06:39 AM
Civil Sunset: 4:52 PM
Nautical Sunrise: 06:03 AM
Nautical Sunset: 5:27 PM
Astro Sunrise: 05:29 AM
Astro Sunset: 6:02 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.