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La Salle County, IL 7-Day Night Weather Forecast
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La Salle County, IL Weather Forecast
La Salle County, IL Weather Forecast Date: 829 PM CST Mon Mar 02 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
Rest of Tonight... Mostly cloudy. A slight chance of rain and freezing rain late. Lows in the lower 30s. East winds around 5 mph. Chance of precipitation 20%.
Tuesday... Cloudy. A chance of freezing rain early in the morning. A chance of rain in the morning. A chance of rain late. Highs in the mid 40s. East winds around 5 mph. Chance of precipitation 50%.
Tuesday Night... Mostly cloudy. A chance of rain showers. Lows in the mid 30s. East winds 5 to 10 mph. Chance of precipitation 50%.
Wednesday... Mostly cloudy. A chance of rain showers. Highs in the lower 50s. East winds 5 to 10 mph. Chance of precipitation 50%.
Wednesday Night... Cloudy. A chance of showers in the evening. A slight chance of thunderstorms. Showers likely after midnight. Lows in the mid 40s. East winds around 5 mph. Chance of precipitation 70%.
Thursday... Mostly cloudy. Showers, mainly in the morning. Highs in the upper 50s. Chance of precipitation 80%.
Thursday Night... Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 40s. Chance of precipitation 30%.
Friday... Showers likely with a slight chance of thunderstorms. Highs around 70. Chance of precipitation 70%.
Friday Night... A chance of thunderstorms. Showers. Lows in the mid 50s. Chance of precipitation 90%.
Saturday... Mostly cloudy. A chance of showers in the morning. Highs in the mid 60s. Temperature falling into the upper 50s in the afternoon. Chance of precipitation 50%.
Saturday Night... Mostly cloudy. Lows in the lower 40s.
Sunday... Partly cloudy. Highs in the lower 60s.
Sunday Night... Mostly clear. Lows in the mid 40s.
POP = Probability of Precipitation
La Salle County Radar Loop
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