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Foster, WI Weather Forecast
Foster, WI Weather Forecast Date: 541 AM CDT Fri Sep 11 2026
The area/counties/county of: Trempealeau, including the cities of: Arcadia and Whitehall.or toggle through each period.
Today... Areas of fog this morning. Mostly sunny. Highs in the lower 80s. South winds 10 to 15 mph.
Tonight... Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the mid 60s. South winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 50%.
Saturday... Mostly sunny. Highs in the mid 70s. Northwest winds 10 to 15 mph.
Saturday Night... Much cooler. Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 40s. Northwest winds 5 to 10 mph.
Sunday... Cooler. Partly sunny. A chance of showers in the afternoon. Highs in the mid 60s. Northwest winds around 5 mph. Chance of rain 50%.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. A 50% chance of showers. Lows in the upper 40s.
Monday... Showers and a chance of thunderstorms. Highs in the lower 70s. Lows in the mid 50s. Chance of rain 100%.
Monday Night... Showers and a chance of thunderstorms. Highs in the lower 70s. Lows in the mid 50s. Chance of rain 100%.
Tuesday... Partly sunny. Highs in the upper 60s.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s.
Wednesday... Partly sunny. Highs around 70.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the lower 50s. Chance of rain 40%.
POP = Probability of Precipitation
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