Glenn Weather Forecast

    • 23
    • 39

    Decreasing Clouds

    • 28
    • 30

    Chance Rain/Snow

    • 33
    • 41

    Chance Rain Showers

    • 24
    • 36

    Mostly Cloudy

    • 26
    • 31

    Chance Freezing Rain

    • 31
    • 41

    Rain/Snow Likely

    • 21
    • 36

    Chance Rain/Snow

Today 31 Jan Allegan

Rain Likely, possibly mixed with snow. Patchy fog. Highs in the upper 30s. Northeast Winds 10 to 15 Mph with Gusts to around 25 Mph. Chance of precipitation 70 percent.

Tonight 31 Jan Allegan

Partly cloudy. Lows in the lower 20s. North Winds 5 to 15 Mph.

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Glenn Temperature Statistics

January Temperature

South Haven, South Haven Area Regional Airport (11.2 miles)

  • Lowest 22 January, 2025

    -5.3 °F

  • Average January

    23.8 °F

  • Highest 17 January, 2025

    43.3 °F

Climate (2020–Present)

South Haven, South Haven Area Regional Airport (11.2 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    59 °F
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