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Somerset, IL Weather Forecast
Somerset, IL Weather Forecast Date: 757 AM CDT Mon Oct 12 2026
The area/counties/county of: Saline, including the city of Harrisburg.or toggle through each period.
Today... Sunny. Highs around 90. Southwest winds 10 to 15 mph.
Tonight... Mostly clear. Lows in the mid 60s. Southwest winds 5 to 10 mph.
Tuesday... Sunny. Highs in the lower 90s. Southwest winds 5 to 10 mph.
Tuesday Night... Mostly clear. Lows in the lower 70s. Southwest winds 5 to 10 mph.
Wednesday... Mostly sunny in the morning, then becoming mostly cloudy. A chance of showers in the morning, then showers in the afternoon. Highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 80%.
Wednesday Night... Showers likely with a chance of thunderstorms. Lows in the mid 60s. Chance of rain 70%.
Thursday... Partly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 50%.
Thursday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows in the mid 50s. Chance of rain 50%.
Friday... Mostly sunny. Cooler with highs in the mid 60s.
Friday Night... Mostly clear. Lows in the upper 30s. Highs in the lower 60s.
Saturday... Mostly clear. Lows in the upper 30s. Highs in the lower 60s.
Saturday Night... Clear. Lows in the mid 30s.
POP = Probability of Precipitation
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