Weather WorldWayne Helen Lake, IL 7-Day Night Weather Forecast
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Wayne Helen Lake, IL Weather Forecast
Wayne Helen Lake, IL Weather Forecast Date: 128 PM CDT Thu Aug 06 2026
The area/counties/county of: Montgomery County Il, including the cities of: Litchfield and Vandalia.or toggle through each period.
This Afternoon... Mostly cloudy with a chance of showers and thunderstorms. Near steady temperature in the upper 70s. South winds around 5 mph. Chance of rain 50%.
Tonight... Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Southeast winds around 5 mph. Chance of rain 50%.
Friday... Mostly sunny with a chance of showers and thunderstorms. Humid with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 40%.
Friday Night... Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. Southwest winds around 5 mph. Chance of rain 20%.
Saturday... Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the upper 80s. West winds around 5 mph. Chance of rain 20%.
Saturday Night... Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 20%.
Sunday... Mostly sunny. A chance of showers and thunderstorms in the morning. Highs in the upper 80s. Chance of rain 40%. Heat index values up to 105 in the afternoon.
Sunday Night... Partly cloudy. Lows in the lower 70s. Highs around 90. Heat index values up to 105.
Monday... Partly cloudy. Lows in the lower 70s. Highs around 90. Heat index values up to 105.
Monday Night... Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20%. Heat index values up to 105 early in the evening.
Tuesday... Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20%. Heat index values up to 100.
Tuesday Night... Partly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 70s. Chance of rain 50%. Heat index values up to 100 early in the evening.
POP = Probability of Precipitation
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