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Koshkonong, Wisconsin Weather Forecast
Koshkonong, Wisconsin Weather
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Weather Forecast for Koshkonong, Wisconsin : Jefferson County
Issued: 2:17 pm CST Dec 11, 2025 Latitude: 42.8461181 Longitude: -88.9192758 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Cloudy on Tonight 30% chance of snow on Friday 20% chance of snow on Saturday Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday Mostly Cloudy on Wednesday 20% chance of rain & snow on Thursday
Low: 8 °F High: 25°F High: 4 °F High: 5 °F High: 19°F High: 34°F High: 39°F High: 36°F
Low: -2°F Low: -9°F Low: -7°F Low: 7°F Low: 27°F Low: 27°F  
Mostly Cloudy Snow Snow Sunny Partly Sunny Partly Sunny Mostly Cloudy Rain & Snow
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Current Conditions at
JANESVILLE - (KJVL)
23°
Mostly Cloudy
as of 2:45 PM CST
Rel. Humidity: 73%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: MVFR
Wind Data
5 MPH
Cloud Level(s): Broken at 1900ft
Current Conditions at
WATERTOWN - (KRYV)
19°
Clear
as of 2:55 PM CST
Rel. Humidity: 67%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MADISON - (KMSN)
21°
Cloudy
as of 2:53 PM CST
Rel. Humidity: 67%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
3 MPH
020° North
Cloud Level(s): Solid Overcast at 15000ft
Current Conditions at
BURLINGTON MUNICIPAL AIR - (KBUU)
23°
Partly Cloudy
as of 2:55 PM CST
Rel. Humidity: 62%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
6 MPH
230° Southwest
Cloud Level(s): Scattered at 12000ft
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 8. Calm wind.

30% chance of snow Friday Friday... A 30 percent chance of snow, mainly between 10am and 2pm. Mostly cloudy, with a high near 25. Light and variable wind becoming west 5 to 10 mph in the morning.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -2. Wind chill values between -10 and -20. Northwest wind 10 to 15 mph.

20% chance of snow Saturday Saturday... A 20 percent chance of snow. Mostly cloudy and cold, with a high near 4. Wind chill values between -15 and -20. Northwest wind 10 to 15 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around -9. Northwest wind around 10 mph.

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

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -7. Southwest wind 5 to 15 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 19. Southwest wind 10 to 15 mph.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 7.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 34.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 27.

Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 39.

40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of rain. Mostly cloudy, with a low around 27.

20% chance of rain & snow Thursday Thursday... A slight chance of rain and snow. Partly sunny, with a high near 36. Chance of precipitation is 20%.

Current Radar Image


Sun Almanac for Koshkonong, Wisconsin
Sunrise: 07:17 AM
Sunset: 4:21 PM
Civil Sunrise:06:45 AM
Civil Sunset: 4:54 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:29 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:04 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.