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Waterman, IL Weather Forecast
Waterman, IL Weather Forecast Date: 816 AM CDT Wed Oct 14 2026
The area/counties/county of: De Kalb, including the cities of: Dekalb and Sycamore.or toggle through each period.
Today... Mostly cloudy. A chance of showers early in the morning. A slight chance of showers late in the morning. Highs in the mid 60s. Northeast winds 5 to 10 mph. Chance of precipitation 40%.
Tonight... Mostly cloudy. A slight chance of rain late. Lows in the mid 50s. Northeast winds around 10 mph. Chance of precipitation 20%.
Thursday... A chance of rain early in the morning, then rain in the late morning and afternoon. A slight chance of thunderstorms in the afternoon. Near steady temperature in the upper 50s. East winds 5 to 10 mph. Chance of precipitation near 100%.
Thursday Night... Mostly cloudy. Rain likely with a slight chance of thunderstorms in the evening, then a slight chance of rain after midnight. Breezy with lows in the mid 40s. Northwest winds 10 to 15 mph, increasing to 15 to 20 mph with gusts up to 30 mph after midnight. Chance of precipitation 70%.
Friday... Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of rain in the morning. Breezy with highs in the mid 50s. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 20%.
Friday Night... Mostly clear. Widespread frost after midnight. Lows in the lower 30s.
Saturday... Areas of frost in the morning. Sunny. Highs in the mid 50s.
Saturday Night... Clear. Lows in the upper 30s.
Sunday... Sunny. Highs in the mid 60s.
Sunday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 40s.
Monday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the upper 60s.
Monday Night... Mostly cloudy in the evening, then clearing. Lows in the mid 40s.
POP = Probability of Precipitation
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