Chesterfield Weather Forecast

    • 72
    • 94

    Increasing Clouds

    • 73
    • 96

    Rain Showers

    • 66
    • 82

    Rain Showers

    • 52
    • 81

    Rain Showers Likely

    • 40
    • 64

    Mostly Sunny

    • 39
    • 63

    Mostly Sunny

Today 12 Oct St. Louis

Sunny. Highs in the lower 90s. Southwest Winds 10 to 15 Mph.

Tonight 12 Oct St. Louis

Partly cloudy in the Evening, then becoming mostly clear. Lows around 70. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesterfield Temperature Statistics

October Temperature

St. Louis, Spirit Of St. Louis Airport (3.7 miles)

  • Lowest 6 October, 2026

    42.7 °F

  • Average October

    66 °F

  • Highest 1 October, 2026

    89.7 °F

Climate (2021–2026)

St. Louis, Spirit Of St. Louis Airport (3.7 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    69 °F
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