| NWS Forecast for: Janesville WI Issued by: National Weather Service Milwaukee, WI Last Update: 1:46 am CST Dec 5, 2025 |  |
Overnight: Cloudy, with a low around -4. South wind around 10 mph. Friday: A 20 percent chance of snow after 4pm. Increasing clouds, with a high near 26. Wind chill values between -5 and 5. Southwest wind around 10 mph. Friday Night: A chance of snow and freezing rain before 11pm, then a slight chance of freezing rain between 11pm and midnight. Cloudy, with a low around 20. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 50%. Saturday: Mostly sunny, with a high near 23. Northwest wind around 5 mph becoming calm in the afternoon. Saturday Night: Snow, mainly after midnight. Low around 11. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible. Sunday: A 40 percent chance of snow before noon. Mostly sunny, with a high near 20. North wind 5 to 10 mph. Sunday Night: Partly cloudy, with a low around -3. North wind around 5 mph becoming calm in the evening. Monday: Mostly cloudy, with a high near 20. Light and variable wind becoming south 5 to 10 mph in the morning. Monday Night: Snow likely, mainly after midnight. Mostly cloudy, with a temperature falling to near 14 by 8pm, then rising to around 22 during the remainder of the night. Chance of precipitation is 60%. Tuesday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 33. Tuesday Night: Snow. Low around 24. Chance of precipitation is 80%. Wednesday: A chance of rain and snow. Mostly cloudy, with a high near 32. Chance of precipitation is 50%. Wednesday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 7. Thursday: A 20 percent chance of snow. Partly sunny, with a high near 19. | |
| Janesville WI 42.69°N 89.03°W (Elev. 860 ft) | |
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