Lake Forest Weather Forecast

    • 28
    • 35

    Mostly Cloudy

    • 25
    • 36

    Rain Showers

    • 18
    • 41

    Rain/Snow

    • 17
    • 23

    Chance Snow Showers

    • 16
    • 35

    Slight Chance Snow Showers

    • 14
    • 27

    Mostly Cloudy

Today 16 Dec Montcalm

Mostly cloudy. Highs in the mid 30s. Southwest Winds 5 to 15 Mph with Gusts to around 30 Mph.

Tonight 16 Dec Montcalm

Cloudy. Lows in the upper 20s. Southwest Winds 15 to 20 Mph with Gusts to around 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

December Temperature

Alma, Gratiot Community Airport (26.1 miles)

  • Lowest 8 December, 2025

    -2.2 °F

  • Average December

    20.4 °F

  • Highest 9 December, 2025

    32 °F

Climate (2020–Present)

Alma, Gratiot Community Airport (26.1 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    58.7 °F
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