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Spring Brook, IL Weather Forecast
Spring Brook, IL Weather Forecast Date: 1221 PM CST Sat Nov 07 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
This Afternoon... Partly cloudy. Highs in the lower 50s. West winds 5 to 10 mph.
Tonight... Clear in the evening, then becoming partly cloudy. Lows in the mid 30s. Southwest winds 5 to 10 mph.
Sunday... Partly cloudy in the morning, then clearing. Patchy fog early in the morning. Highs in the lower 60s. West winds 10 to 15 mph. Gusts up to 25 mph in the afternoon.
Sunday Night... Mostly clear. Lows in the mid 30s. West winds around 5 mph.
Monday... Partly cloudy. Highs in the lower 60s. Southwest winds 5 to 10 mph.
Monday Night... Mostly clear. Lows in the lower 40s.
Tuesday... Mostly sunny. Highs in the mid 60s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 30s.
Veterans Day... Mostly cloudy. A chance of rain in the afternoon. Highs around 60. Chance of precipitation 30%.
Wednesday Night... Mostly cloudy. Lows in the upper 30s.
Thursday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the lower 50s.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s.
POP = Probability of Precipitation
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