Lake Forest Weather Forecast

    • 62
    • 77

    Chance Rain Showers

    • 62
    • 77

    Rain Showers Likely

    • 62
    • 79

    Rain Showers Likely

    • 62
    • 79

    Rain Showers Likely

    • 57
    • 77

    Chance Thunderstorms

    • 60
    • 77

    Chance Rain Showers

Today 12 Apr Summit

Partly sunny. Much warmer with Highs in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 12 Apr Summit

Mostly cloudy. A chance of Showers after midnight. Not as cool with Lows in the lower 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 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

    49.3 °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

    49.8 °F

  • Average High 2021–2026

    59.8 °F
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