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City of Festus, MissouriFestus, MO 7-Day Night Weather Forecast
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Festus, MO Weather Forecast
Festus, MO Weather Forecast Date: 127 AM CDT Wed Sep 09 2026
The area/counties/county of: Monroe County Il, Jefferson County Mo.or toggle through each period.
Rest of Tonight... Mostly clear and not as cool. Near steady temperature in the mid 70s. South winds around 5 mph.
Wednesday... Sunny with a slight chance of showers in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. West winds around 5 mph. Chance of rain 40%. Heat index values up to 106.
Wednesday Night... Thunderstorms likely. Showers with lows around 70. West winds around 5 mph in the evening, becoming light and variable. Chance of rain near 100%.
Thursday... A chance of thunderstorms. Showers, mainly in the morning. Much cooler. Humid with highs in the upper 70s. Northwest winds around 5 mph. Chance of rain near 100%.
Thursday Night... Mostly cloudy. Lows in the lower 60s. Northeast winds around 5 mph in the evening, becoming light and variable.
Friday... Mostly sunny. A slight chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 20%.
Friday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 60s.
Saturday... Mostly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 50%. Heat index values up to 100 in the afternoon.
Saturday Night... Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 60s. Chance of rain 50%.
Sunday... Mostly sunny. A slight chance of showers in the morning. Highs around 90. Chance of rain 20%. Heat index values up to 100 in the afternoon.
Sunday Night... Partly cloudy in the evening, then becoming mostly clear. Lows in the upper 60s.
Monday... Sunny. Highs in the lower 90s. Heat index values up to 105.
Monday Night... Mostly clear with a chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Chance of rain 40%.
POP = Probability of Precipitation
Festus Radar Loop
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