St. Louis Weather: Cooler and Sunny, Saturday Storm Risk — June 12, 2026
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Weather

The First Alert Forecast for the St. Louis region from the First Alert Weather Team.

ByChance Gotsch
June 12, 2026Updated: June 12, 2026, 2:39 pm EDTPublished: June 12, 2026, 3:49 am EDT
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  • A Cooler and Sunny Friday
  • First Alert Weather Day On Saturday
  • Cooler This Weekend

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Friday: Get ready for some sunny skies and highs into the lower 80s this afternoon. Winds remain out of the northwest at around 4-8 mph making for a substantial decrease in the humidity from previous days.

Saturday is a First Alert Weather Day: Scattered showers and storms remain possible Saturday lasting through Sunday morning, some of these storms could be stronger on Saturday as the cold front moves in. There is still some uncertainty given the potential for morning showers and storms which could limit the potential for stronger storms later during the evening hours. If things remain dryer during the am hours, the severe threat could increase substantially. Afternoon highs top out into the mid 80s.

What’s Next: Temperatures decrease once again with highs into the upper 70s Sunday and Monday. Things remain relatively dry after Sunday morning showers clear lasting until mid-week next week.

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