Grinnell Regional Airport Weather Forecast

    • 59
    • 85

    Sunny

    • 67
    • 84

    Mostly Sunny

    • 60
    • 85

    Mostly Sunny

    • 54
    • 73

    Rain Showers Likely

    • 52
    • 68

    Rain Showers Likely

    • 48
    • 67

    Chance Rain Showers

Today 10 Oct Poweshiek

Sunny. Highs in the mid 80s. South Winds 10 to 15 Mph.

Tonight 10 Oct Poweshiek

Clear. Lows in the upper 50s. South Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Real-Time

Grinnell Regional Airport Temperature Statistics

October Temperature

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

  • Lowest 3 October, 2026

    44.6 °F

  • Average October

    61.9 °F

  • Highest 6 October, 2026

    82.4 °F

Climate (2021–2026)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    61.3 °F
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