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Attica, Wisconsin Weather Forecast
Attica, Wisconsin Weather
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Weather Forecast for Attica, Wisconsin : Green County
Issued: 9:06 pm CST Jan 20, 2026 Latitude: 42.770005 Longitude: -89.4806753 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
100% chance of snow on Tonight 70% chance of snow on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Partly Sunny on Saturday 20% chance of snow on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday
Low: 11°F High: 24°F High: 16°F High: -6°F High: 1 °F High: 9°F High: 13°F High: 21°F
Low: 7 °F Low: -14°F Low: -15°F Low: -6°F Low: -5°F Low: 2°F  
Snow Snow Mostly Sunny Mostly Sunny Partly Sunny Snow Mostly Sunny Partly Sunny
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Current Conditions at
JANESVILLE - (KJVL)
16°
Cloudy
as of 8:45 PM CST
Rel. Humidity: 72%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: MVFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Scattered at 2600ft, Broken at 3000ft, Solid Overcast at 7000ft
Current Conditions at
MADISON - (KMSN)
12°
Cloudy
as of 8:53 PM CST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 6000ft, Solid Overcast at 7500ft
100% chance of snow Tonight Tonight... Snow, mainly before 5am. Low around 11. Southeast wind around 5 mph becoming northwest after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.

70% chance of snow Wednesday Wednesday... Snow likely, mainly after 4pm. Partly sunny, with a high near 24. Northwest wind 5 to 15 mph becoming southwest in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

70% chance of snow Wednesday Night Wednesday Night... Snow likely, mainly before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 7. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 16. Wind chill values between -10 and zero. West wind 10 to 15 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around -14. Northwest wind around 10 mph.

Mostly Sunny on Friday Friday... Mostly sunny and cold, with a high near -6. Northwest wind around 10 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around -15. Northwest wind around 5 mph.

Partly Sunny on Saturday Saturday... Partly sunny and cold, with a high near 1. North wind around 5 mph.

20% chance of snow Saturday Night Saturday Night... A 20 percent chance of snow. Mostly cloudy, with a low around -6.

20% chance of snow Sunday Sunday... A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 9.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -5.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 13.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 2.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 21.

Sun Almanac for Attica, Wisconsin
Sunrise: 07:23 AM
Sunset: 4:55 PM
Civil Sunrise:06:52 AM
Civil Sunset: 5:26 PM
Nautical Sunrise: 06:17 AM
Nautical Sunset: 6:01 PM
Astro Sunrise: 05:43 AM
Astro Sunset: 6:35 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.