I-90 weather conditions near Janesville, Wisconsin
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 50°F 2026-05-05T02:35:00-05:00 
Overnight 2026-05-05, Isolated Showers. Scattered sprinkles before 3am, then isolated showers between 3am and 5am, then scattered sprinkles with isolated showers after 5am. Mostly cloudy, with a low around 43. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday 2026-05-05, Partly Sunny. Partly sunny, with a high near 59. Northwest wind 5 to 10 mph.
Tuesday Night 2026-05-05, Mostly Cloudy. Mostly cloudy, with a low around 37. Northwest wind around 5 mph becoming calm in the evening.- Wednesday 2026-05-06, Areas Frost then Partly Sunny. Areas of frost before 7am. Otherwise, partly sunny, with a high near 55. Northwest wind 5 to 10 mph.
- Wednesday Night 2026-05-06, Partly Cloudy then Areas Frost. Areas of frost after 2am. Otherwise, partly cloudy, with a low around 34. Northwest wind around 5 mph becoming calm in the evening.
Thursday 2026-05-07, Areas Frost then Slight Chance Showers. A 20 percent chance of showers after 1pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 60. Light west wind increasing to 5 to 10 mph in the morning.
- Thursday Night 2026-05-07, Partly Cloudy. Partly cloudy, with a low around 42. South wind around 5 mph.
Friday 2026-05-08, Partly Sunny then Chance Showers. A 30 percent chance of showers after 1pm. Partly sunny, with a high near 65. Southwest wind 5 to 10 mph.
Friday Night 2026-05-08, Slight Chance Showers. A 20 percent chance of showers before 1am. Partly cloudy, with a low around 42.
Saturday 2026-05-09, Sunny. Sunny, with a high near 71.
Saturday Night 2026-05-09, Chance Showers. A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Sunday 2026-05-10, Chance Showers. A 40 percent chance of showers. Mostly cloudy, with a high near 63.- Sunday Night 2026-05-10, Slight Chance Showers. A 20 percent chance of showers. Partly cloudy, with a low around 41.
Monday 2026-05-11, Mostly Sunny. Mostly sunny, with a high near 63.