Cook Weather Forecast

    • 45
    • 63

    Mostly Cloudy

    • 46
    • 68

    Partly Sunny

    • 35
    • 61

    Mostly Cloudy

    • 34
    • 62

    Mostly Sunny

    • 35
    • 63

    Partly Sunny

    • 38
    • 63

    Mostly Cloudy

Today 18 Sep Central St. Louis

Mostly cloudy. Highs in the lower 60s. Southeast Winds 5 to 10 Mph.

Tonight 18 Sep Central St. Louis

Mostly cloudy. A slight chance of Showers and drizzle in the evening. Patchy fog after midnight. Lows in the mid 40s. East Winds around 5 Mph. Chance of rain 20 percent.

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Cook Temperature Statistics

September Temperature

Cook Municipal Airport (1.9 miles)

  • Lowest 14 September, 2026

    30.2 °F

  • Average September

    61.1 °F

  • Highest 3 September, 2026

    82.4 °F

Climate (2021–2026)

Cook Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    30.3 °F

  • Average 2021–2026

    41.7 °F

  • Average High 2021–2026

    51.7 °F
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