Glenn Weather Forecast

    • 40
    • 53

    Chance Rain Showers

    • 37
    • 48

    Partly Sunny

    • 35
    • 46

    Mostly Sunny

    • 40
    • 48

    Mostly Sunny

    • 43
    • 55

    Chance Rain Showers

    • 44
    • 55

    Chance Rain Showers

Today 29 Apr Allegan

Mostly cloudy with a 50 percent chance of rain Showers. Highs in the mid 50s. Northeast Winds around 10 Mph becoming north in the afternoon.

Tonight 29 Apr Allegan

Partly cloudy. A 20 percent chance of rain Showers in the evening. Areas of frost after midnight. Lows in the mid 30s. Northwest Winds 5 to 10 Mph with Gusts to around 20 Mph in the evening becoming light.

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Glenn Temperature Statistics

April Temperature

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

  • Lowest 7 April, 2026

    23 °F

  • Average April

    50.8 °F

  • Highest 12 April, 2026

    80.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    51.3 °F

  • Average High 2021–2026

    59.5 °F
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