Lake Forest Weather Forecast

    • 64
    • 84

    Mostly Sunny

    • 66
    • 87

    Sunny

    • 71
    • 90

    Mostly Sunny

    • 68
    • 89

    Mostly Sunny

    • 66
    • 88

    Partly Sunny

    • 66
    • 86

    Chance Rain Showers

Today 12 Jul Summit

Mostly sunny. Highs in the mid 80s. Northeast Winds 5 to 10 Mph.

Tonight 12 Jul Summit

Mostly clear. Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

July Temperature

Portage County Airport (11.2 miles)

  • Lowest 8 July, 2026

    63 °F

  • Average July

    75.9 °F

  • Highest 1 July, 2026

    94.5 °F

Climate (2021–2026)

Portage County Airport (11.2 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    60.1 °F
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