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Gillen, IL 7-Day Night Weather Forecast
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Gillen, IL Weather Forecast
Gillen, IL Weather Forecast Date: 626 PM CDT Sat Oct 10 2026
The area/counties/county of: Warren, including the city of Monmouth.or toggle through each period.
Tonight... Partly cloudy this evening, then clearing. Lows in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.
Sunday... Sunny. Highs in the mid 80s. South winds 5 to 10 mph.
Sunday Night... Partly cloudy. Warmer with lows in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph.
Columbus Day... Sunny. Highs in the upper 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Monday Night... Mostly clear. Lows in the upper 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Tuesday... Sunny. Highs in the lower 80s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 50%.
Wednesday... Showers likely. Highs in the mid 70s. Chance of rain 70%.
Wednesday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 50s.
Thursday... Showers likely in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 60%.
Thursday Night... Mostly cloudy with a chance of showers. Lows around 50. Chance of rain 50%.
Friday... Partly sunny. Highs in the mid 60s.
Friday Night... Partly cloudy. Lows in the lower 40s. Highs in the upper 50s.
POP = Probability of Precipitation
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