Chesterfield Weather Forecast

    • 76
    • 94

    Increasing Clouds

    • 77
    • 96

    Mostly Sunny

    • 77
    • 98

    Hot

    • 77
    • 97

    Hot

    • 77
    • 96

    Mostly Sunny

    • 76
    • 96

    Mostly Sunny

Today 28 Jun St. Louis

Sunny. Highs in the lower 90s. South Winds 5 to 10 Mph. Heat index Values up to 109.

Tonight 28 Jun St. Louis

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph. Heat index Values up to 110 early in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesterfield Temperature Statistics

June Temperature

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

  • Lowest 3 June, 2026

    52.6 °F

  • Average June

    74.1 °F

  • Highest 9 June, 2026

    93.7 °F

Climate (2021–2026)

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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