Lake Forest Weather Forecast

    • 77
    • 96

    Thunderstorms Likely

    • 77
    • 96

    Chance Thunderstorms

    • 79
    • 97

    Slight Chance Thunderstorms

    • 80
    • 99

    Slight Chance Thunderstorms

    • 79
    • 99

    Chance Thunderstorms

    • 79
    • 99

    Chance Thunderstorms

Today 14 Aug Trout River

Mostly sunny. Showers and Thunderstorms likely in the afternoon. Highs in the mid 90s. West Winds around 5 Mph. Chance of rain 70 percent. Heat index Values up to 111.

Tonight 14 Aug Trout River

Partly cloudy with Showers and Thunderstorms likely in the Evening, then mostly clear after midnight. Lows in the upper 70s. Southwest Winds around 5 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Forest Temperature Statistics

August Temperature

Jacksonville International Airport (6.8 miles)

  • Lowest 7 August, 2026

    72.6 °F

  • Average August

    82.7 °F

  • Highest 11 August, 2026

    95 °F

Climate (2021–2026)

Jacksonville International Airport (6.8 miles)

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  • Average Low 2021–2026

    60 °F

  • Average 2021–2026

    69.9 °F

  • Average High 2021–2026

    81.4 °F
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