Grinnell Regional Airport Weather Forecast

    • 43
    • 63

    Increasing Clouds

    • 47
    • 64

    Slight Chance Rain

    • 34
    • 62

    Mostly Sunny

    • 27
    • 52

    Chance Rain/Snow

    • 23
    • 39

    Mostly Cloudy

    • 18
    • 40

    Chance Rain/Snow

Today 16 Feb Poweshiek

Mostly sunny. Highs in the lower 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 16 Feb Poweshiek

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 40s. Southeast 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

    32.8 °F

  • Highest 9 February, 2026

    62.6 °F

Climate (2021–Present)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

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  • Average Low 2021–2026

    41.5 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    61.4 °F
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