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Lake Normandy, IL 7-Day Night Weather Forecast
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Lake Normandy, IL Weather Forecast
Lake Normandy, IL Weather Forecast Date: 127 PM CDT Sat Oct 10 2026
The area/counties/county of: Jefferson, including the city of Mount Vernon.or toggle through each period.
This Afternoon... Cloudy. Near steady temperature in the mid 70s. East winds 5 to 10 mph.
Tonight... Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.
Sunday... Sunny. Highs in the mid 80s. Northwest winds around 5 mph.
Sunday Night... Clear in the evening, then becoming partly cloudy. Lows around 60. Calm winds, becoming south around 5 mph after midnight.
Columbus Day... Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph.
Monday Night... Clear. Lows in the mid 60s. Highs in the lower 90s.
Tuesday... Clear. Lows in the mid 60s. Highs in the lower 90s.
Tuesday Night... Mostly clear. Lows in the mid 60s.
Wednesday... Partly sunny. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Chance of rain 70%.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the lower 60s. Highs around 80. Chance of rain 50%.
Thursday... Mostly cloudy with a chance of showers. Lows in the lower 60s. Highs around 80. Chance of rain 50%.
Thursday Night... Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 50%.
POP = Probability of Precipitation
Lake Normandy Radar Loop
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