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Allison, IL Weather Forecast
Allison, IL Weather Forecast Date: 332 AM CDT Tue Sep 08 2026
The area/counties/county of: Lawrence, including the city of Lawrenceville.or toggle through each period.
Today... Mostly sunny. Highs in the mid 90s. South winds 5 to 10 mph.
Tonight... Partly cloudy in the evening, then becoming mostly clear. Not as cool with lows in the lower 70s. South winds 5 to 10 mph.
Wednesday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. Southwest winds 10 to 15 mph. Chance of rain 40%. Heat index values up to 102.
Wednesday Night... Showers. Thunderstorms, mainly in the evening. Humid with lows around 70. Southwest winds 5 to 10 mph. Chance of rain 90%.
Thursday... Showers, mainly in the morning. Not as warm. Humid with highs in the lower 80s. West winds around 5 mph. Chance of rain 90%.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s.
Friday... Partly cloudy. Highs in the upper 80s. Lows in the mid 60s.
Saturday... Partly cloudy. Highs in the upper 80s. Lows in the mid 60s.
Sunday... Partly cloudy. Highs in the upper 80s. Lows in the mid 60s.
POP = Probability of Precipitation
Allison Radar Loop
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