I-90 weather conditions near Portage, Wisconsin
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Partly Cloudy 59°F 2025-10-16T21:35:00-05:00 Tonight 2025-10-16, Isolated Showers then Mostly Cloudy. Isolated showers before midnight. Mostly cloudy, with a low around 56. South wind around 10 mph. Chance of precipitation is 20%.
Friday 2025-10-17, Mostly Cloudy. Mostly cloudy, with a high near 78. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night 2025-10-17, Showers. Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Low around 58. Southwest wind 5 to 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday 2025-10-18, Chance Showers. A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny, with a high near 74. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night 2025-10-18, Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Northwest wind 5 to 15 mph. Chance of precipitation is 50%.
Sunday 2025-10-19, Mostly Sunny. Mostly sunny, with a high near 61. Northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night 2025-10-19, Mostly Clear. Mostly clear, with a low around 40. West wind around 5 mph becoming southwest after midnight.
Monday 2025-10-20, Sunny. Sunny, with a high near 68. South wind 10 to 15 mph.
Monday Night 2025-10-20, Chance Showers. A 30 percent chance of showers. Mostly cloudy, with a low around 43.
Tuesday 2025-10-21, Chance Showers. A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 54.- Tuesday Night 2025-10-21, Partly Cloudy. Partly cloudy, with a low around 36.
- Wednesday 2025-10-22, Mostly Sunny. Mostly sunny, with a high near 57.
Wednesday Night 2025-10-22, Mostly Cloudy then Slight Chance Showers. A 20 percent chance of showers. Mostly cloudy, with a low around 39.
Thursday 2025-10-23, Mostly Sunny then Slight Chance Showers. A 20 percent chance of showers. Mostly sunny, with a high near 57.