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St. Elmo, IL Weather Forecast
St. Elmo, IL Weather Forecast Date: 954 PM CST Tue Nov 03 2026
The area/counties/county of: Montgomery County Il, including the cities of: Litchfield and Vandalia.or toggle through each period.
Tonight... Rain with a slight chance of thunderstorms this evening, then rain likely after midnight. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100%.
Wednesday... Mostly cloudy. Cooler with highs in the lower 60s. West winds 10 to 15 mph.
Wednesday Night... Mostly cloudy in the evening, then clearing. Cooler with lows in the lower 40s. Southwest winds around 5 mph.
Thursday... Sunny. Highs in the lower 60s. West winds 5 to 10 mph.
Thursday Night... Mostly cloudy. A slight chance of rain and thunderstorms after midnight. Lows in the lower 40s. Northwest winds around 5 mph. Chance of rain 20%.
Friday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 50s.
Friday Night... Partly cloudy. Lows in the mid 30s. Highs in the mid 50s.
Saturday... Partly cloudy. Lows in the mid 30s. Highs in the mid 50s.
Sunday... Mostly clear. Highs in the lower 60s. Lows in the lower 30s.
Monday... Mostly clear. Highs in the lower 60s. Lows in the lower 30s.
Monday Night... Mostly clear. Lows in the upper 30s. Highs in the upper 60s.
POP = Probability of Precipitation
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