Lake Forest Weather Forecast

    • 67
    • 81

    Rain Showers

    • 63
    • 81

    Slight Chance Thunderstorms

    • 65
    • 85

    Partly Sunny

    • 67
    • 87

    Rain Showers Likely

    • 65
    • 83

    Rain Showers

    • 63
    • 82

    Chance Thunderstorms

Today 6 Jul Summit

Mostly cloudy. A slight chance of Showers and Thunderstorms this Morning, then Showers with a chance of Thunderstorms this afternoon. Highs in the lower 80s. East Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 6 Jul Summit

Mostly cloudy. A chance of Showers and Thunderstorms in the evening. Humid with Lows in the upper 60s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

July Temperature

Portage County Airport (11.2 miles)

  • Lowest 4 July, 2026

    68 °F

  • Average July

    80.3 °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 °F

  • Average High 2021–2026

    60.1 °F
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