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Altona, IL Weather Forecast
Altona, IL Weather Forecast Date: 437 PM CDT Mon Oct 05 2026
The area/counties/county of: Knox, including the city of Galesburg.or toggle through each period.
Tonight... Clear. Lows in the upper 40s. Southeast winds around 5 mph.
Tuesday... Sunny. Highs in the mid 70s. South winds 10 to 15 mph.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Southwest winds 5 to 10 mph.
Wednesday... Sunny. Highs in the upper 70s. West winds 5 to 10 mph.
Wednesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Northwest winds around 5 mph in the evening, becoming light and variable.
Thursday... Partly cloudy. Highs in the lower 70s. Lows in the upper 40s.
Friday... Partly cloudy. Highs in the lower 70s. Lows in the upper 40s.
Friday Night... Mostly clear. Lows around 50. Highs in the upper 70s.
Saturday... Mostly clear. Lows around 50. Highs in the upper 70s.
Saturday Night... Mostly clear. Lows in the upper 50s. Highs in the upper 70s.
Sunday... Mostly clear. Lows in the upper 50s. Highs in the upper 70s.
POP = Probability of Precipitation
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