Lake Forest Weather Forecast

    • 61
    • 80

    Chance Rain Showers

    • 64
    • 85

    Partly Sunny

    • 70
    • 91

    Partly Sunny

    • 74
    • 96

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

    • 73
    • 95

    Mostly Sunny

Today 27 Jun Summit

Mostly cloudy in the Morning, then becoming partly sunny. A chance of Showers with a slight chance of Thunderstorms. Highs in the upper 70s. East Winds around 5 Mph. Chance of rain 50 percent.

Tonight 27 Jun Summit

Mostly cloudy with a 50 percent chance of Showers. Lows around 60. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

June Temperature

Portage County Airport (11.2 miles)

  • Lowest 1 June, 2026

    45.3 °F

  • Average June

    66.8 °F

  • Highest 10 June, 2026

    87.6 °F

Climate (2021–2026)

Portage County Airport (11.2 miles)

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  • Average Low 2021–2026

    40.4 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    59.9 °F
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