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Harco, IL Weather Forecast
Harco, IL Weather Forecast Date: 612 AM CDT Wed Sep 23 2026
The area/counties/county of: Saline, including the city of Harrisburg.or toggle through each period.
Today... Mostly cloudy. Highs in the lower 70s. North winds 5 to 10 mph.
Tonight... Mostly cloudy. Lows in the upper 50s. North winds 5 to 10 mph.
Thursday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s. Northeast winds 5 to 10 mph.
Thursday Night... Partly cloudy. Lows in the upper 50s. Northeast winds around 5 mph.
Friday... Mostly sunny. Highs in the upper 70s. Northeast winds 5 to 10 mph.
Friday Night... Partly cloudy. Lows in the mid 50s.
Saturday... Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s.
Saturday Night... Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s.
Sunday... Partly cloudy. Highs around 80. Lows in the mid 50s.
Sunday Night... Partly cloudy. Highs around 80. Lows in the mid 50s.
Monday... Mostly clear. Highs in the lower 80s. Lows in the upper 50s.
Monday Night... Mostly clear. Highs in the lower 80s. Lows in the upper 50s.
POP = Probability of Precipitation
Harco Radar Loop
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