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Oldtown, IL 7-Day Night Weather Forecast
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Oldtown, IL Weather Forecast
Oldtown, IL Weather Forecast Date: 833 PM CDT Thu Sep 10 2026
The area/counties/county of: Saline, including the city of Harrisburg.or toggle through each period.
Tonight... Mostly cloudy. A slight chance of showers and thunderstorms this evening, then a chance of showers and thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 60s. North winds around 5 mph this evening, becoming light and variable. Chance of rain 50%.
Friday... Patchy fog in the morning. Mostly cloudy with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. East winds around 5 mph. Chance of rain 20%.
Friday Night... Mostly cloudy with a chance of showers. Lows in the upper 60s. Calm winds. Chance of rain 40%.
Saturday... Mostly sunny. Highs around 90. Southwest winds around 5 mph.
Saturday Night... Mostly clear. Lows in the upper 60s. Calm winds.
Sunday... Mostly sunny. Highs in the lower 90s.
Sunday Night... Mostly clear. Lows in the mid 60s. Highs around 90.
Monday... Mostly clear. Lows in the mid 60s. Highs around 90.
Monday Night... Clear. Lows in the upper 60s.
Tuesday... Sunny. Highs in the lower 90s.
Tuesday Night... Mostly clear. A chance of showers after midnight. Lows in the upper 60s. Chance of rain 30%.
Wednesday... Mostly sunny. A chance of showers in the afternoon. Highs in the lower 90s. Chance of rain 30%.
Wednesday Night... Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30%.
POP = Probability of Precipitation
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