Chesterfield Weather Forecast

    • 28
    • 44

    Increasing Clouds

    • 22
    • 42

    Partly Sunny

    • 16
    • 37

    Mostly Sunny

    • 19
    • 35

    Mostly Sunny

    • 41
    • 53

    Mostly Cloudy

    • 35
    • 61

    Partly Sunny

Today 20 Feb St. Louis

Sunny. Much cooler with Highs in the mid 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 20 Feb St. Louis

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the upper 20s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chesterfield Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    -7.3 °F

  • Average February

    39.9 °F

  • Highest 18 February, 2026

    72 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    68.6 °F
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