| NWS Forecast for: Franklin County Issued by: National Weather Service Saint Louis, MO Last Update: 1027 PM CDT Sat Mar 28 2026 |  |
| Overnight: Partly cloudy. Not as cool with lows in the upper 30s. South winds around 5 mph. Sunday: Mostly sunny. Not as cool with highs in the lower 70s. South winds 5 to 10 mph with gusts up to 20 mph. Sunday Night: Partly cloudy in the evening, then becoming mostly clear. Not as cool with lows in the mid 50s. South winds 5 to 10 mph with gusts up to 25 mph. Monday: Sunny. Not as cool with highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Monday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. South winds 10 to 15 mph with gusts up to 30 mph. Tuesday: Partly sunny. A slight chance of rain in the morning, then a chance of rain and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent. Tuesday Night: A chance of thunderstorms in the evening. Rain. Much cooler with lows in the mid 40s. Chance of rain 90 percent. Wednesday Through Thursday: Rain likely. Highs in the upper 50s. Lows in the lower 40s. Chance of rain 70 percent. Thursday Night: Mostly cloudy with a 50 percent chance of rain. Lows in the mid 40s. Friday: Mostly cloudy in the morning, then becoming partly sunny. A 40 percent chance of rain. Not as cool with highs in the lower 70s. Friday Night: Mostly cloudy with a slight chance of thunderstorms. A chance of rain. Lows in the lower 50s. Chance of rain 50 percent. Saturday: Rain likely. Highs in the upper 60s. Chance of rain 60 percent. | |
| Zone Forecast: Franklin County | |
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