| NWS Forecast for: Janesville WI Issued by: National Weather Service Milwaukee, WI Last Update: 12:26 am CDT Oct 14, 2026 |  |
Overnight: Cloudy, with a low around 55. Calm wind becoming north around 5 mph. Wednesday: Mostly cloudy, with a high near 64. Northeast wind 5 to 10 mph. Wednesday Night: Mostly cloudy, with a low around 50. Northeast wind 5 to 10 mph. Thursday: Showers, mainly after noon. High near 57. East wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible. Thursday Night: Showers, mainly before 1am. Low around 44. Breezy, with a northeast wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible. Friday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 55. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 35 mph. Friday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph becoming light in the evening. Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. Light west wind becoming southwest 5 to 10 mph in the afternoon. Saturday Night: Clear, with a low around 39. Sunday: Sunny, with a high near 64. Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 46. Monday: A 20 percent chance of showers. Partly sunny, with a high near 66. Monday Night: Mostly cloudy, with a low around 45. Tuesday: Partly sunny, with a high near 69. | |
| Janesville WI 42.67°N 89.04°W (Elev. 774 ft) | |
Visit your local NWS office at: https://www.weather.gov/mkx |
