Sullivan, Wisconsin Weather
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Weather Forecast for Sullivan, Wisconsin : Jefferson County
Issued: 10:23 pm CDT Aug 25, 2025 Latitude: 43.0127852 Longitude: -88.5881562 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Friday Saturday Sunday Labor Day
Mostly Clear on Tonight Mostly Sunny on Tuesday Mostly Sunny on Wednesday 40% chance of thunderstorms on Thursday Mostly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Labor Day
Low: 45°F High: 70°F High: 74°F High: 70°F High: 69°F High: 71°F High: 74°F High: 75°F
Low: 49°F Low: 57°F Low: 48°F Low: 47°F Low: 51°F Low: 54°F  
Mostly Clear Mostly Sunny Mostly Sunny Thunderstorms Mostly Sunny Partly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
WAUKESHA - (KUES)
54°
Clear
as of 11:15 PM CDST
Rel. Humidity: 76%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
5 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
BURLINGTON MUNICIPAL AIR - (KBUU)
48°
Clear
as of 11:10 PM CDST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
JUNEAU - (KUNU)
54°
Clear
as of 11:15 PM CDST
Rel. Humidity: 71%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 45. Calm wind.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 70. Light west wind becoming northwest 5 to 10 mph in the morning.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 74. Light southwest wind becoming west 5 to 10 mph in the morning.
50% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms. Increasing clouds, with a low around 57. Southwest wind around 5 mph. Chance of precipitation is 50%.
40% chance of thunderstorms Thursday Thursday... A chance of showers before 1pm, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 70. West wind 5 to 10 mph becoming north in the afternoon. Chance of precipitation is 40%.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 48. Northeast wind around 5 mph.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 69. Northeast wind around 5 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 47.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 71.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 51.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 74.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 54.
Partly Sunny on Labor Day Labor Day... Partly sunny, with a high near 75.
Current Radar Image


Sun Almanac for Sullivan, Wisconsin
Sunrise: 06:13 AM
Sunset: 7:39 PM
Civil Sunrise:05:43 AM
Civil Sunset: 8:09 PM
Nautical Sunrise: 05:08 AM
Nautical Sunset: 8:44 PM
Astro Sunrise: 04:30 AM
Astro Sunset: 9:22 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.