Chesterfield Weather Forecast

    • 57
    • 69

    Rain Showers

    • 61
    • 82

    Rain Showers Likely

    • 61
    • 83

    Chance Thunderstorms

    • 64
    • 86

    Mostly Cloudy

    • 66
    • 84

    Chance Thunderstorms

    • 67
    • 84

    Rain Showers Likely

Today 22 May St. Louis

Mostly cloudy. A chance of Showers this afternoon. Highs in the upper 60s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 22 May St. Louis

Mostly cloudy. A chance of Showers in the evening. Patchy fog after midnight. Lows in the upper 50s. Northeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 40 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

    36.6 °F

  • Average May

    62.2 °F

  • Highest 17 May, 2026

    86.6 °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

    68.9 °F
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