Lake Forest Weather Forecast

    • 60
    • 78

    Slight Chance Thunderstorms

    • 64
    • 85

    Mostly Sunny

    • 53
    • 79

    Rain Showers

    • 54
    • 74

    Partly Sunny

    • 55
    • 76

    Chance Rain Showers

    • 60
    • 80

    Rain Showers Likely

Today 12 Jun Summit

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Morning, then mostly sunny in the afternoon. Highs around 80. West Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 12 Jun Summit

Clear. Lows around 60. West Winds 5 to 10 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

    67.7 °F

  • Highest 8 June, 2026

    86.9 °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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