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Mater Dei High School, IL Weather Forecast
Mater Dei High School, IL Weather Forecast Date: 1128 PM CDT Sat Aug 01 2026
The area/counties/county of: Clinton County Il, including the cities of: Centralia and Salem.or toggle through each period.
Overnight... Mostly cloudy with drizzle. Lows in the upper 60s. Northwest winds 10 to 15 mph.
Sunday... Mostly cloudy with drizzle in the morning, then mostly sunny with a chance of drizzle in the afternoon. Highs around 80. North winds 10 to 15 mph with gusts up to 25 mph.
Sunday Night... Mostly clear. Lows in the mid 60s. North winds 5 to 10 mph.
Monday... Mostly sunny. Highs in the lower 80s. North winds around 5 mph.
Monday Night... Mostly clear. Lows in the mid 60s. Northeast winds around 5 mph in the evening, becoming light and variable.
Tuesday... Mostly clear. Highs in the mid 80s. Lows in the mid 60s.
Wednesday... Mostly clear. Highs in the mid 80s. Lows in the mid 60s.
Wednesday Night... Partly cloudy in the evening, then mostly clear with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 30%.
Thursday... Partly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the mid 80s. Chance of rain 40%.
Thursday Night... Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. Chance of rain 20%.
Friday... Mostly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the upper 80s. Chance of rain 30%. Heat index values up to 105 in the afternoon.
Friday Night... Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Highs around 90. Chance of rain 20%. Heat index values up to 105.
POP = Probability of Precipitation
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