Lake Forest Weather Forecast

    • 30
    • 48

    Snow Showers Likely

    • 28
    • 41

    Slight Chance Snow Showers

    • 53
    • 67

    Chance Rain Showers

    • 46
    • 69

    Slight Chance Thunderstorms

    • 56
    • 77

    Partly Sunny

    • 55
    • 81

    Chance Rain Showers

Today 19 Apr Summit

Partly sunny with a 30 percent chance of Showers. Much cooler. Near steady temperature in the upper 40s. West Winds around 15 Mph with Gusts up to 30 Mph.

Tonight 19 Apr Summit

Mostly cloudy. Rain Showers likely in the Evening, then a chance of snow and rain Showers after midnight. Little or no snow accumulation. Lows in the lower 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

April Temperature

Portage County Airport (11.2 miles)

  • Lowest 8 April, 2026

    20.3 °F

  • Average April

    53.7 °F

  • Highest 4 April, 2026

    79.9 °F

Climate (2021–Present)

Portage County Airport (11.2 miles)

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  • Average Low 2021–2026

    40.3 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59.9 °F
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