Grinnell Regional Airport Weather Forecast

    • 65
    • 85

    Thunderstorms Likely

    • 65
    • 87

    Chance Thunderstorms

    • 65
    • 83

    Rain Showers

    • 67
    • 85

    Rain Showers Likely

    • 70
    • 91

    Slight Chance Thunderstorms

    • 72
    • 94

    Slight Chance Thunderstorms

    • 70
    • 94

    Chance Thunderstorms

Today 5 Jun Poweshiek

Mostly cloudy with Showers likely with a chance of Thunderstorms this Morning, then partly sunny this afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 5 Jun Poweshiek

A chance of Thunderstorms. Showers. Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grinnell Regional Airport Temperature Statistics

June Temperature

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

  • Lowest 2 June, 2026

    55.4 °F

  • Average June

    72.7 °F

  • Highest 1 June, 2026

    87.8 °F

Climate (2021–Present)

Newton Municipal Airport - Earl Johnson Field (14.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    61.6 °F
Get WillyWeather+ to remove ads