| NWS Forecast for: Janesville WI Issued by: National Weather Service Milwaukee, WI Last Update: 2:38 pm CDT Jun 18, 2025 |  |
This Afternoon: Showers and possibly a thunderstorm. High near 75. North wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tonight: Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then scattered showers and thunderstorms after 4am. Low around 62. Northwest wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Juneteenth: Scattered showers and thunderstorms before 7am, then isolated showers between 7am and 8am. Mostly cloudy, then gradually becoming sunny, with a high near 82. Northwest wind 5 to 10 mph. Chance of precipitation is 30%. Thursday Night: Mostly clear, with a low around 63. Southwest wind around 5 mph. Friday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 84. South wind 5 to 15 mph. Friday Night: Mostly clear, with a low around 72. South wind around 15 mph, with gusts as high as 25 mph. Saturday: Sunny and hot, with a high near 95. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Saturday Night: Clear, with a low around 75. Southwest wind around 15 mph, with gusts as high as 25 mph. Sunday: Sunny and hot, with a high near 96. Sunday Night: Clear, with a low around 75. Monday: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 94. Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Tuesday: Showers and thunderstorms likely. Mostly sunny and hot, with a high near 90. Chance of precipitation is 60%. Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%. Wednesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Chance of precipitation is 70%. | |
| Janesville WI 42.67°N 89.04°W (Elev. 774 ft) | |
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