Big River Lake Weather Forecast

    • 46
    • 58

    Becoming Sunny

    • 51
    • 57

    Chance Rain

    • 46
    • 61

    Slight Chance Rain

    • 47
    • 57

    Chance Rain Showers

    • 47
    • 55

    Chance Rain Showers

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    • 54

    Rain Showers

Today 10 Sep Tyonek

Partly sunny. Highs around 60. Variable wind 10 Mph in the morning becoming light.

Tonight 10 Sep Tyonek

Partly cloudy in the evening then becoming clear. Lows in the mid 40s. Light Winds.

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  • Temperature Real-Time

Big River Lake Temperature Statistics

September Temperature

Kenai, Kenai Municipal Airport (39.8 miles)

  • Lowest 2 September, 2026

    33.1 °F

  • Average September

    53 °F

  • Highest 3 September, 2026

    62.1 °F

Climate (2021–2026)

Kenai, Kenai Municipal Airport (39.8 miles)

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  • Average Low 2021–2026

    29.1 °F

  • Average 2021–2026

    36.2 °F

  • Average High 2021–2026

    42.8 °F
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