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Marcoe, IL Weather Forecast
Marcoe, IL Weather Forecast Date: 417 AM CDT Thu Oct 29 2026
The area/counties/county of: Jefferson, including the city of Mount Vernon.or toggle through each period.
Today... Sunny. Highs in the lower 80s. Southwest winds 5 to 10 mph.
Tonight... Partly cloudy. Lows in the mid 50s. Southwest winds around 5 mph, becoming northeast after midnight.
Friday... Mostly sunny. Highs around 80. East winds around 5 mph.
Friday Night... Mostly cloudy. Lows in the mid 50s. East winds around 5 mph.
Saturday... Cloudy. Highs in the mid 70s. East winds around 5 mph.
Saturday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of rain 30%.
Sunday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the lower 70s. Chance of rain 40%.
Sunday Night... Mostly cloudy. Lows in the lower 50s.
Monday... Partly sunny in the morning, then becoming mostly cloudy. A 30% chance of showers. Highs in the lower 70s.
Monday Night... Mostly cloudy with a 40% chance of showers. Lows in the mid 50s.
Tuesday... Mostly cloudy with a 50% chance of showers. Highs in the lower 70s. Lows in the mid 50s.
POP = Probability of Precipitation
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