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Mountain, IL Weather Forecast
Mountain, IL Weather Forecast Date: 603 PM CDT Wed Sep 30 2026
The area/counties/county of: Adams County Il, including the cities of: Quincy, Mount Sterling, Pittsfield, Hannibal, and Bowling Green.or toggle through each period.
Tonight... Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 70s. Southeast winds 5 to 10 mph. Chance of rain 20%.
Thursday... Showers likely with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Near steady temperature in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming west in the afternoon. Chance of rain near 100%.
Thursday Night... Showers with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Cooler with lows in the upper 50s. North winds 5 to 10 mph with gusts up to 25 mph. Chance of rain near 100%.
Friday... Sunny. Less humid with highs in the upper 60s. North winds 10 to 15 mph with gusts up to 25 mph.
Friday Night... Mostly clear. Lows in the upper 40s. Northeast winds 5 to 10 mph.
Saturday... Mostly clear. Highs around 70. Lows in the lower 50s.
Sunday... Mostly clear. Highs around 70. Lows in the lower 50s.
Sunday Night... Clear. Lows around 50.
Monday... Sunny. Highs in the upper 60s.
Monday Night... Clear. Lows in the upper 40s.
Tuesday... Sunny. Highs in the upper 60s.
Tuesday Night... Partly cloudy. Lows in the mid 50s. Highs in the mid 70s.
POP = Probability of Precipitation
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