Treynor Weather Forecast

    • 72
    • 93

    Increasing Clouds

    • 69
    • 91

    Chance Thunderstorms

    • 73
    • 90

    Partly Sunny

    • 69
    • 94

    Rain Showers Likely

    • 64
    • 85

    Chance Rain Showers

    • 64
    • 82

    Slight Chance Thunderstorms

    • 65
    • 86

    Slight Chance Thunderstorms

Today 5 Sep Pottawattamie

Sunny. Near steady temperature around 90. Southeast Winds 5 to 10 Mph. Heat index Values up to 101.

Tonight 5 Sep Pottawattamie

Mostly clear late this Evening, then becoming partly cloudy. Lows in the mid 70s. East Winds 5 to 10 Mph.

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Treynor Temperature Statistics

September Temperature

Council Bluffs (7.5 miles)

  • Lowest 2 September, 2026

    71.6 °F

  • Average September

    83.5 °F

  • Highest 2 September, 2026

    96.8 °F

Climate (2021–2026)

Council Bluffs (7.5 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    62.3 °F
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