Grinnell Regional Airport Weather Forecast

    • 32
    • 47

    Increasing Clouds

    • 29
    • 48

    Chance Rain/Snow

    • 32
    • 51

    Mostly Sunny

    • 34
    • 52

    Partly Sunny

    • 33
    • 54

    Mostly Sunny

    • 41
    • 56

    Mostly Cloudy

Today 11 Feb Poweshiek

Sunny. Highs in the upper 40s. Northwest Winds around 5 Mph.

Tonight 11 Feb Poweshiek

Partly cloudy in the Evening, then becoming cloudy. Lows in the lower 30s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grinnell Regional Airport Temperature Statistics

February Temperature

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

  • Lowest 1 February, 2026

    8.6 °F

  • Average February

    27.9 °F

  • Highest 5 February, 2026

    50 °F

Climate (2021–Present)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

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  • Average Low 2021–2026

    41.4 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    61.2 °F
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