Louis Lake Weather Forecast

    • 42
    • 61

    Rain Showers Likely

    • 34
    • 55

    Chance Rain Showers

    • 35
    • 53

    Chance Rain Showers

    • 38
    • 59

    Mostly Sunny

    • 41
    • 63

    Chance Rain Showers

    • 40
    • 63

    Slight Chance Thunderstorms

    • 42
    • 65

    Partly Sunny

Today 18 Sep Wind River Mountains East

Partly cloudy. A slight chance of. Highs around 60.

Tonight 18 Sep Wind River Mountains East

Mostly cloudy with a chance of rain Showers with a slight chance of Thunderstorms. Lows in the upper 30s. Southwest Winds around 10 Mph. Chance of rain 40 percent.

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Louis Lake Temperature Statistics

September Temperature

South Pass (6.2 miles)

  • Lowest

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  • Average September

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Climate (2022–2024)

South Pass (6.2 miles)

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  • Average Low 2022–2024

    27.8 °F

  • Average 2022–2024

    35 °F

  • Average High 2022–2024

    42.1 °F
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