Weather WorldCosta High School, IL 7-Day Night Weather Forecast
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Costa High School, IL Weather Forecast
Costa High School, IL Weather Forecast Date: 337 PM CDT Tue Oct 06 2026
The area/counties/county of: Knox, including the city of Galesburg.or toggle through each period.
Tonight... Mostly clear. Not as cool with lows in the mid 50s. Southwest winds 5 to 10 mph.
Wednesday... Sunny. Highs in the upper 70s. Northwest 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.
Thursday... Sunny. Highs in the lower 70s. North winds around 5 mph.
Thursday Night... Mostly clear. Lows around 50. North winds around 5 mph, becoming east after midnight.
Friday... Mostly clear. Highs in the mid 70s. Lows in the upper 50s.
Friday Night... Mostly clear. Highs in the mid 70s. Lows in the upper 50s.
Saturday... Sunny. Highs in the lower 80s.
Saturday Night... Partly cloudy. Lows in the upper 50s. Highs in the upper 70s.
Monday Night... Partly cloudy. A 30% chance of showers. Lows in the upper 50s. Highs in the lower 70s.
POP = Probability of Precipitation
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