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Waterloo Reservoir Number 2, IL Weather Forecast
Waterloo Reservoir Number 2, IL Weather Forecast Date: 1053 AM CDT Mon Aug 03 2026
The area/counties/county of: Monroe County Il, Jefferson County Mo.or toggle through each period.
This Afternoon... Mostly sunny. Highs in the mid 80s. Light and variable winds, becoming northeast around 5 mph.
Tonight... Mostly clear. Patchy fog after midnight. Lows in the lower 60s. East winds around 5 mph in the evening, becoming light and variable.
Tuesday... Sunny. Highs in the upper 80s. Southeast winds around 5 mph.
Tuesday Night... Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph.
Wednesday... Sunny. Highs around 90. South winds around 5 mph.
Wednesday Night... Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 50%.
Thursday... Showers likely with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs in the mid 80s. Chance of rain 70%.
Thursday Night... Showers and thunderstorms likely. Lows in the upper 60s. Chance of rain 70%.
Friday... Partly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50%.
Friday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40%.
Saturday... Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20%.
Saturday Night... Partly cloudy. Lows around 70.
POP = Probability of Precipitation
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