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Lyon, MO Weather Forecast
Lyon, MO Weather Forecast Date: 148 AM CST Thu Nov 05 2026
The area/counties/county of: Gasconade County Mo, including the cities of: Washington, Union, and Sullivan.or toggle through each period.
Rest of Tonight... Clear. Patchy fog. Near steady temperature in the mid 40s. Southwest winds around 5 mph.
Thursday... Patchy fog in the morning. Mostly sunny. Highs in the lower 60s. West winds 5 to 10 mph with gusts up to 20 mph.
Thursday Night... Mostly cloudy. A slight chance of rain in the evening. Lows around 40. Northwest winds around 5 mph. Chance of rain 20%.
Friday... Mostly cloudy in the morning, then clearing. Highs in the mid 50s. North winds 5 to 10 mph.
Friday Night... Mostly clear. Cooler with lows in the upper 20s. North winds around 5 mph in the evening, becoming light and variable.
Saturday... Mostly sunny. Highs in the mid 50s.
Saturday Night... Mostly clear. Lows around 30. Highs around 60.
Sunday... Mostly clear. Lows around 30. Highs around 60.
Sunday Night... Clear. Lows in the lower 30s. Highs in the upper 60s.
Monday... Clear. Lows in the lower 30s. Highs in the upper 60s.
Monday Night... Clear. Lows in the upper 30s.
Tuesday... Mostly clear. Highs in the upper 60s. Lows around 40.
Tuesday Night... Mostly clear. Highs in the upper 60s. Lows around 40.
POP = Probability of Precipitation
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