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Village of Seneca, IllinoisSeneca, IL 7-Day Night Weather Forecast
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Seneca, IL Weather Forecast
Seneca, IL Weather Forecast Date: 341 PM CDT Thu Oct 29 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
Late This Afternoon... Mostly sunny. Temperatures in the upper 60s. Northwest winds around 10 mph.
Tonight... Clear, cooler. Lows in the lower 40s. North winds around 5 mph.
Friday... Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers in the afternoon. Highs in the lower 60s. East winds 5 to 10 mph. Chance of precipitation 30%.
Friday Night... Cloudy. A slight chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows around 50. East winds 5 to 10 mph. Chance of precipitation 70%.
Saturday... Showers likely, mainly in the morning. Highs in the mid 60s. Southeast winds 5 to 10 mph. Chance of precipitation 70%.
Saturday Night... Cloudy. A slight chance of showers in the evening. Lows around 50. East winds around 5 mph. Chance of precipitation 20%.
Sunday... Mostly cloudy with a 20% chance of showers. Highs in the upper 60s.
Sunday Night... Mostly cloudy. A slight chance of showers in the evening. Lows in the mid 50s. Chance of precipitation 20%.
Monday... Mostly cloudy with a 50% chance of showers. Highs in the upper 60s.
Monday Night... Showers likely. Lows in the upper 50s. Chance of precipitation 70%.
Tuesday... Showers likely. Highs in the lower 70s. Chance of precipitation 70%.
Tuesday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 50s.
Wednesday... Showers likely. Highs in the upper 60s. Chance of precipitation 70%.
Wednesday Night... Mostly cloudy with a 40% chance of showers. Lows around 50.
POP = Probability of Precipitation
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