Marathon Lake Weather Forecast

    • 69
    • 88

    Mostly Sunny

    • 70
    • 89

    Slight Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 70
    • 91

    Chance Thunderstorms

    • 70
    • 92

    Chance Thunderstorms

    • 70
    • 91

    Chance Thunderstorms

    • 70
    • 91

    Chance Thunderstorms

Today 3 Aug Smith

Sunny. Near steady temperature in the upper 80s. North Winds around 5 Mph.

Tonight 3 Aug Smith

Mostly clear. Lows in the upper 60s. North Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Lake Temperature Statistics

August Temperature

Meridian, Key Field (36.7 miles)

  • Lowest 1 August, 2025

    73.9 °F

  • Average August

    80.7 °F

  • Highest 1 August, 2025

    93 °F

Climate (2020–Present)

Meridian, Key Field (36.7 miles)

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  • Average Low 2020–2025

    55.3 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    78 °F
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