Weather WorldInterstate State Park, WI 7-Day Night Weather Forecast
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Interstate State Park, WI Weather Forecast
Interstate State Park, WI Weather Forecast Date: 341 PM CDT Sun Sep 13 2026
The area/counties/county of: Polk, including the city of Osceola.or toggle through each period.
Tonight... Clear. Lows in the lower 40s. North winds up to 5 mph shifting to the southeast after midnight.
Monday... Mostly sunny in the morning, then rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Southeast winds 5 to 15 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation near 100%.
Monday Night... Warmer. Mostly cloudy. Rain showers in the evening. Lows in the mid 50s. South winds 15 to 20 mph shifting to the southwest 5 to 15 mph after midnight. Chance of showers 90%.
Tuesday... Sunny. Highs in the upper 60s. West winds 10 to 20 mph.
Tuesday Night... Mostly clear. Lows in the mid 40s. Northwest winds up to 5 mph in the evening becoming light.
Wednesday... Increasing clouds. Highs in the upper 60s.
Wednesday Night... Mostly cloudy. Lows in the lower 50s.
Thursday... Mostly sunny. Highs in the lower 70s.
Thursday Night... Partly cloudy. Chance of rain showers after midnight. Lows in the lower 50s. Chance of showers 30%.
Friday... Mostly cloudy with a 50% chance of rain showers. Highs in the upper 60s.
Friday Night... Mostly cloudy with a 50% chance of rain showers. Lows in the lower 50s.
Saturday... Mostly cloudy. A 50% chance of rain showers in the morning. Highs around 70.
Saturday Night... Decreasing clouds. Lows in the upper 40s.
POP = Probability of Precipitation
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