Chesterfield Weather Forecast

    • 69
    • 86

    Chance Thunderstorms

    • 67
    • 87

    Slight Chance Thunderstorms

    • 68
    • 88

    Mostly Sunny

    • 74
    • 92

    Slight Chance Thunderstorms

    • 74
    • 94

    Thunderstorms Likely

    • 70
    • 89

    Chance Thunderstorms

Today 5 Jul St. Louis

Mostly cloudy with a slight chance of Showers and Thunderstorms Early, then partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 80s. North Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 5 Jul St. Louis

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Patchy fog after midnight. Lows in the upper 60s. North Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Chesterfield Temperature Statistics

July Temperature

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

  • Lowest 3 July, 2026

    73.9 °F

  • Average July

    85.1 °F

  • Highest 2 July, 2026

    96.7 °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

    57.4 °F

  • Average High 2021–2026

    68.9 °F
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