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Thornton Park, IL 7-Day Night Weather Forecast
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Thornton Park, IL Weather Forecast
Thornton Park, IL Weather Forecast Date: 236 AM CDT Tue Aug 25 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
Early This Morning... Mostly clear late, then becoming partly cloudy. Patchy fog. Temperatures in the upper 50s. Light and variable winds.
Today... Partly cloudy. Patchy fog early in the morning. Highs in the upper 70s. South winds around 5 mph.
Tonight... Partly cloudy. A slight chance of showers and thunderstorms late. Lows in the mid 60s. South winds around 5 mph. Chance of precipitation 20%.
Wednesday... Partly cloudy in the morning, then clearing. A slight chance of showers and thunderstorms. Highs in the lower 80s. Southwest winds 5 to 10 mph, increasing to west 10 to 15 mph in the afternoon. Chance of precipitation 20%.
Wednesday Night... Clear. Lows in the lower 60s. Northwest winds 5 to 10 mph.
Thursday... Mostly sunny. Highs around 80. North winds 5 to 10 mph.
Thursday Night... Clear. Lows in the lower 60s.
Friday... Mostly sunny. Highs in the lower 80s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
Saturday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the lower 80s.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s.
Sunday... Partly cloudy. Highs in the mid 80s.
Sunday Night... Partly cloudy. A chance of showers after midnight. Lows around 70. Chance of precipitation 40%.
POP = Probability of Precipitation
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