Chesterfield Weather Forecast

    • 56
    • 82

    Rain Showers Likely

    • 45
    • 69

    Partly Sunny

    • 51
    • 75

    Sunny

    • 58
    • 84

    Chance Thunderstorms

    • 51
    • 77

    Sunny

    • 58
    • 78

    Slight Chance Thunderstorms

    • 65
    • 88

    Slight Chance Thunderstorms

Today 9 May St. Louis

Sunny. Highs around 80. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 9 May St. Louis

Showers likely with a slight chance of Thunderstorms. Lows in the mid 50s. Southwest Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesterfield Temperature Statistics

May Temperature

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

  • Lowest 7 May, 2026

    37 °F

  • Average May

    56.2 °F

  • Highest 4 May, 2026

    81.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    68.8 °F
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