Grinnell Regional Airport Weather Forecast

    • 22
    • 32

    Chance Freezing Rain

    • 27
    • 41

    Partly Sunny

    • 26
    • 57

    Mostly Sunny

    • 16
    • 36

    Slight Chance Snow

    • 18
    • 29

    Chance Snow

    • 22
    • 34

    Chance Rain/Snow

Today 25 Feb Poweshiek

Mostly sunny. A chance of snow in the afternoon. Highs in the lower 30s. Northwest Winds 5 to 10 Mph. Chance of snow 30 percent.

Tonight 25 Feb Poweshiek

Mostly cloudy. A chance of Snow, mainly in the evening. Snow accumulation around an inch possible. Lows in the lower 20s. Northeast Winds around 5 Mph, becoming southeast after midnight. Chance of snow 50 percent.

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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 22 February, 2026

    6.8 °F

  • Average February

    33.6 °F

  • Highest 16 February, 2026

    68 °F

Climate (2021–Present)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

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  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    61.5 °F
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