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Watson Lake, IL Weather Forecast
Watson Lake, IL Weather Forecast Date: 1049 PM CDT Wed Oct 28 2026
The area/counties/county of: Greene County Il, Jersey County Il.or toggle through each period.
Overnight... Mostly clear. Lows in the mid 50s. South winds 5 to 10 mph.
Thursday... Sunny in the morning, then becoming partly sunny. Highs around 80. Southwest winds 5 to 10 mph, becoming west in the afternoon.
Thursday Night... Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.
Friday... Partly sunny. A chance of showers, mainly in the morning. Highs in the upper 70s. Southeast winds 5 to 10 mph. Chance of rain 40%.
Friday Night... Mostly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.
Saturday... Mostly cloudy. Highs in the mid 70s.
Saturday Night... Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. Chance of rain 30%.
Sunday... Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 40%.
Sunday Night... Mostly cloudy with a 20% chance of showers. Lows in the lower 50s.
Monday... Mostly cloudy with a 40% chance of showers. Highs around 70.
Monday Night... Mostly cloudy with a chance of showers. A slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 50%.
Tuesday... Showers likely. Highs in the lower 70s. Chance of rain 70%.
Tuesday Night... Mostly cloudy with a 50% chance of showers. Lows in the lower 50s. Highs around 70.
POP = Probability of Precipitation
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