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City of Olney, ILOlney, IL 7-Day Night Weather Forecast
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Olney, IL Weather Forecast
Olney, IL Weather Forecast Date: 937 PM CDT Wed Sep 02 2026
The area/counties/county of: Richland, including the city of Olney.or toggle through each period.
Rest of Tonight... Mostly clear. Lows in the upper 70s. South winds around 5 mph.
Thursday... Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 105.
Thursday Night... Mostly clear. Lows in the upper 70s. South winds around 5 mph.
Friday... Sunny, hot with highs around 100. West winds around 5 mph. Heat index values up to 107.
Friday Night... Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the mid 70s. South winds around 5 mph in the evening, becoming light and variable.
Saturday... Mostly sunny. A chance of showers in the afternoon. Hot with highs in the mid 90s. Chance of rain 30%. Heat index values up to 105.
Saturday Night... Partly cloudy in the evening, then clearing. Lows in the lower 70s.
Sunday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s.
Monday... Mostly clear. Highs in the lower 90s. Lows in the upper 60s.
Tuesday... Mostly sunny. Highs in the mid 90s.
Tuesday Night... Mostly clear. Hot. Lows in the lower 70s. Highs in the upper 90s.
POP = Probability of Precipitation
Olney Radar Loop
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