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Mount Olive, IL Weather Forecast
Mount Olive, IL Weather Forecast Date: 923 AM CDT Fri Sep 11 2026
The area/counties/county of: Greene County Il, Jersey County Il.or toggle through each period.
Rest of Today... Mostly cloudy. Highs in the lower 80s. Southeast winds around 5 mph.
Tonight... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph.
Saturday... Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph.
Saturday Night... Partly cloudy. Lows in the mid 60s. South winds around 5 mph, becoming northeast after midnight.
Sunday... Mostly sunny with a 20% chance of showers. Highs in the upper 80s. East winds around 5 mph, becoming north around 5 mph in the afternoon.
Sunday Night... Partly cloudy. A slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 20%.
Monday... Sunny. Highs in the upper 80s.
Monday Night... Mostly clear. A slight chance of showers after midnight. Lows around 70. Chance of rain 20%.
Tuesday... Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 20%.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Chance of rain 50%.
Wednesday... Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50%.
Wednesday Night... Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Highs in the upper 80s. Chance of rain 50%.
POP = Probability of Precipitation
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