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Erb Lake, MO Weather Forecast
Erb Lake, MO Weather Forecast Date: 127 PM CDT Fri Sep 11 2026
The area/counties/county of: Randolph County Il, including the cities of: Chester and Sparta.or toggle through each period.
This Afternoon... Cloudy with a chance of showers and thunderstorms. Near steady temperature around 80. Southeast winds around 5 mph. Chance of rain 30%.
Tonight... Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Patchy fog after midnight. Lows in the mid 60s. South winds around 5 mph. Chance of rain 40%.
Saturday... Partly sunny in the morning, then clearing. Patchy fog in the morning. Highs around 90. West winds around 5 mph.
Saturday Night... Partly cloudy. Lows in the mid 60s. Southwest winds around 5 mph.
Sunday... Mostly sunny. Highs around 90. West winds around 5 mph. Heat index values up to 101 in the afternoon.
Sunday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20%.
Monday... Mostly sunny. Highs in the upper 80s.
Monday Night... Mostly clear. Lows in the upper 60s. Highs in the mid 90s. Heat index values up to 105.
Tuesday... Mostly clear. Lows in the upper 60s. Highs in the mid 90s. Heat index values up to 105.
Wednesday... Mostly clear. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows around 70. Chance of rain 20%. Heat index values up to 105.
Wednesday Night... Mostly clear. A slight chance of showers and thunderstorms. Highs in the lower 90s. Lows around 70. Chance of rain 20%. Heat index values up to 105.
POP = Probability of Precipitation
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