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Johnstown Center, Wisconsin Weather Forecast
Johnstown Center, Wisconsin Weather
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Weather Forecast for Johnstown Center, Wisconsin : Rock County
Issued: 3:07 am CST Dec 21, 2025 Latitude: 42.6958451 Longitude: -88.8395521 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Clear on Overnight Sunny on Sunday Cloudy on Monday Partly Sunny on Tuesday 20% chance of rain on Wednesday 20% chance of rain on Christmas Day Mostly Cloudy on Friday Mostly Cloudy on Saturday
Low: 10°F High: 26°F High: 36°F High: 41°F High: 41°F High: 46°F High: 38°F High: 38°F
Low: 21°F Low: 31°F Low: 25°F Low: 35°F Low: 31°F Low: 27°F  
Clear Sunny Cloudy Partly Sunny Rain Rain Mostly Cloudy Mostly Cloudy
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Current Conditions at
JANESVILLE - (KJVL)
16°
Feels like 4°F
Clear
as of 3:10 AM CST
Rel. Humidity: 61%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
9 MPH
320° Northwest
Cloud Level(s): Clear
Current Conditions at
BURLINGTON MUNICIPAL AIR - (KBUU)
16°
Feels like 4°F
Clear
as of 3:15 AM CST
Rel. Humidity: 56%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
9 MPH
300° Northwest
Cloud Level(s): Clear
Current Conditions at
WATERTOWN - (KRYV)
12°
Feels like 0°F
Clear
as of 3:15 AM CST
Rel. Humidity: 61%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
9 MPH
320° Northwest
Cloud Level(s): Clear
Current Conditions at
ROCKFORD - (KRFD)
18°
Clear
as of 2:54 AM CST
Rel. Humidity: 67%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.30 in.
Flight Rule: VFR
Wind Data
8 MPH
300° Northwest
Cloud Level(s): Clear
Clear on Overnight Overnight... Clear, with a low around 10. Wind chill values between zero and 5. Northwest wind around 10 mph.

Sunny on Sunday Sunday... Sunny, with a high near 26. Wind chill values between zero and 10. Northwest wind around 5 mph becoming south in the afternoon.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 21. South wind 5 to 10 mph.

Cloudy on Monday Monday... Cloudy, with a high near 36. South wind 10 to 15 mph.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 31. South wind around 5 mph becoming west after midnight.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 41. Northwest wind 5 to 10 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 25. Calm wind becoming southeast around 5 mph after midnight.

20% chance of rain Wednesday Wednesday... A 20 percent chance of rain after noon. Cloudy, with a high near 41. Southeast wind 5 to 10 mph.

30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain before midnight. Cloudy, with a low around 35.

20% chance of rain Christmas Day Christmas Day... A 20 percent chance of rain after noon. Cloudy, with a high near 46.

20% chance of rain Thursday Night Thursday Night... A 20 percent chance of rain. Cloudy, with a low around 31.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 38.

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

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 38.

Current Radar Image


Sun Almanac for Johnstown Center, Wisconsin
Sunrise: 07:23 AM
Sunset: 4:25 PM
Civil Sunrise:06:50 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 06:15 AM
Nautical Sunset: 5:33 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:07 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.