Grand River Weather Forecast

    • 31
    • 56

    Increasing Clouds

    • 35
    • 46

    Rain

    • 29
    • 46

    Chance Rain/Snow

    • 35
    • 49

    Mostly Cloudy

    • 26
    • 54

    Mostly Cloudy

    • 18
    • 40

    Mostly Cloudy

Today 29 Jan Decatur

Sunny. Highs in the mid 50s. West Winds around 5 Mph.

Tonight 29 Jan Decatur

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand River Temperature Statistics

January Temperature

Lamoni, Lamoni Municipal Airport (13 miles)

  • Lowest 21 January, 2025

    -13.3 °F

  • Average January

    20.1 °F

  • Highest 17 January, 2025

    50.6 °F

Climate (2020–Present)

Lamoni, Lamoni Municipal Airport (13 miles)

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  • Average Low 2020–2025

    43.3 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    62.9 °F
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