Tonica Grade School, IL 7-Day Night Weather Forecast
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Tonica Grade School, IL Weather Forecast


Tonica Grade School, IL Weather Forecast Date: 511 AM CDT Sat Aug 08 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
Today... Partly cloudy in the morning then clearing. Highs in the lower 80s. Northwest winds 5 to 10 mph.
Tonight... Partly cloudy. A slight chance of showers and thunderstorms late. Lows in the mid 60s. North winds around 5 mph, becoming southeast after midnight. Chance of precipitation 20%.
Sunday... Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. South winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of precipitation 50%.
Sunday Night... Showers likely with a chance of thunderstorms. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation 70%.
Monday... Mostly cloudy. A chance of showers and thunderstorms, mainly in the morning. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of precipitation 40%. Heat index values up to 101.
Monday Night... Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of precipitation 70%.
Tuesday... Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 50%.
Tuesday Night... Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of precipitation 60%.
Wednesday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 50%.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows in the mid 60s. Chance of precipitation 40%.
Thursday... Mostly cloudy with a chance of showers. Highs in the upper 70s. Chance of precipitation 50%.
Thursday Night... Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of precipitation 30%.
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