Lake Forest Weather Forecast

    • 63
    • 83

    Partly Sunny

    • 69
    • 85

    Rain Showers Likely

    • 68
    • 85

    Rain Showers

    • 58
    • 79

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 63
    • 82

    Rain Showers Likely

    • 58
    • 77

    Chance Thunderstorms

Today 14 Aug Summit

Partly sunny. Near steady temperature in the lower 80s. Northeast Winds around 5 Mph.

Tonight 14 Aug Summit

Partly cloudy. Lows in the lower 60s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

August Temperature

Portage County Airport (11.2 miles)

  • Lowest 4 August, 2026

    50.4 °F

  • Average August

    71.1 °F

  • Highest 5 August, 2026

    87.6 °F

Climate (2021–2026)

Portage County Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    60.1 °F
Get WillyWeather+ to remove ads