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Tompkins, IL Weather Forecast
Tompkins, IL Weather Forecast Date: 242 PM CDT Tue Sep 29 2026
The area/counties/county of: Warren, including the city of Monmouth.or toggle through each period.
This Afternoon... Partly sunny. Highs in the lower 80s. Temperature falling into the upper 70s late. South winds 5 to 10 mph.
Tonight... Cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Not as cool with lows in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50%.
Wednesday... Showers. Not as warm. More humid with highs in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90%.
Wednesday Night... Mostly cloudy. A chance of showers. Humid with lows in the mid 60s. South winds around 5 mph. Chance of rain 50%.
Thursday... Showers with highs in the lower 70s. Southwest winds around 5 mph. Chance of rain near 100%.
Thursday Night... Showers, mainly in the evening. Lows in the upper 50s. Chance of rain near 100%.
Friday... Partly sunny in the morning, then clearing. Highs in the upper 60s.
Friday Night... Mostly clear. Lows in the upper 40s. Highs in the mid 60s.
Saturday... Mostly clear. Lows in the upper 40s. Highs in the mid 60s.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Sunday... Sunny. Highs in the upper 60s.
Sunday Night... Clear. Lows in the upper 40s.
POP = Probability of Precipitation
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