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Marston, IL Weather Forecast
Marston, IL Weather Forecast Date: 551 PM CDT Thu Sep 17 2026
The area/counties/county of: Mercer, including the city of Aledo.or toggle through each period.
Tonight... Mostly cloudy. Patchy fog after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph.
Friday... Mostly cloudy in the morning, then becoming partly sunny. Patchy fog in the morning. A 50% chance of showers. Humid with highs in the upper 70s. East winds 5 to 10 mph.
Friday Night... Partly cloudy. A chance of showers and thunderstorms after midnight. Humid with lows in the upper 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50%.
Saturday... Showers likely with a chance of thunderstorms in the morning, then mostly cloudy with a chance of showers in the afternoon. Humid with highs in the mid 80s. South winds 5 to 10 mph. Chance of rain 70%.
Saturday Night... Showers likely with a chance of thunderstorms in the evening, then showers after midnight. Humid with lows in the mid 60s. East winds around 5 mph, becoming northeast after midnight. Chance of rain 80%.
Sunday... Showers likely with a chance of thunderstorms. Highs in the lower 70s. Lows around 60. Chance of rain 70%.
Sunday Night... Showers likely with a chance of thunderstorms. Highs in the lower 70s. Lows around 60. Chance of rain 70%.
Monday... Showers likely, mainly in the morning. Highs in the mid 60s. Chance of rain 70%.
Monday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of rain 50%.
Tuesday... Partly sunny. Highs in the mid 60s.
Tuesday Night... Partly cloudy. Lows in the lower 50s.
Wednesday... Partly sunny. Highs in the upper 60s.
Wednesday Night... Partly cloudy. Lows in the mid 50s. Highs in the lower 70s.
POP = Probability of Precipitation
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