Weather WorldMcmann Lake, IL 7-Day Night Weather Forecast
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Mcmann Lake, IL Weather Forecast
Mcmann Lake, IL Weather Forecast Date: 1137 AM CDT Fri Sep 11 2026
The area/counties/county of: Menard, including the city of Petersburg.or toggle through each period.
This Afternoon... Mostly cloudy early, then becoming partly sunny. Highs in the lower 80s. Southeast winds around 5 mph.
Tonight... Partly cloudy in the evening, then clearing. Lows in the mid 60s. Southeast winds around 5 mph.
Saturday... Mostly sunny. Highs in the upper 80s. Southwest winds around 5 mph.
Saturday Night... Partly cloudy. Lows in the mid 60s. Northwest winds around 5 mph.
Sunday... Mostly sunny. Highs in the mid 80s. North winds 5 to 10 mph.
Sunday Night... Partly cloudy. Lows in the lower 60s. Highs in the upper 80s.
Monday... Partly cloudy. Lows in the lower 60s. Highs in the upper 80s.
Monday Night... Mostly clear. Lows around 70.
Tuesday... Mostly sunny. A chance of showers in the afternoon. Highs in the upper 80s. Chance of rain 40%.
Tuesday Night... Showers likely. Lows in the mid 60s. Highs in the upper 80s. Chance of rain 60%.
Wednesday... Showers likely. Lows in the mid 60s. Highs in the upper 80s. Chance of rain 60%.
POP = Probability of Precipitation
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