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City of Frontenac, MissouriFrontenac, MO 7-Day Night Weather Forecast
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Frontenac, MO Weather Forecast
Frontenac, MO Weather Forecast Date: 129 PM CDT Tue Oct 27 2026
The area/counties/county of: Madison County Il, including the cities of: Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis.or toggle through each period.
This Afternoon... Mostly cloudy. Near steady temperature in the lower 70s. South winds 5 to 10 mph.
Tonight... Partly cloudy in the evening, then clearing. Lows in the lower 50s. South winds around 5 mph.
Wednesday... Sunny. Highs around 80. South winds 5 to 10 mph.
Wednesday Night... Clear. Lows in the mid 50s. South winds 5 to 10 mph.
Thursday... Sunny. Highs in the lower 80s. Southwest winds around 5 mph.
Thursday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s.
Friday... Mostly cloudy. Highs in the upper 70s. Lows in the upper 50s.
Friday Night... Mostly cloudy. Highs in the upper 70s. Lows in the upper 50s.
Saturday... Mostly cloudy. A slight chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 20%.
Saturday Night... Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60%.
Sunday... Mostly cloudy. A chance of showers, mainly in the morning. Highs around 70. Chance of rain 50%.
Sunday Night... Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20%.
POP = Probability of Precipitation
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