Lake Forest Weather Forecast

    • 52
    • 68

    Becoming Sunny

    • 56
    • 76

    Partly Sunny

    • 62
    • 78

    Rain Showers

    • 57
    • 81

    Chance Thunderstorms

    • 56
    • 76

    Mostly Sunny

    • 57
    • 77

    Partly Sunny

Today 15 Jun Summit

Partly sunny in the Morning, then clearing. Cooler with Highs in the upper 60s. Northwest Winds 5 to 10 Mph.

Tonight 15 Jun Summit

Mostly clear. Lows in the lower 50s. Southwest 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

    69.6 °F

  • Highest 10 June, 2026

    87.6 °F

Climate (2021–Present)

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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