Tongue River Reservoir Weather Forecast

    • 38
    • 75

    Mostly Sunny

    • 45
    • 77

    Partly Sunny

    • 40
    • 80

    Rain Showers Likely

    • 28
    • 57

    Chance Rain Showers

    • 28
    • 54

    Partly Sunny

    • 29
    • 54

    Partly Sunny

Today 9 Oct Southern Big Horn

Sunny. Highs in the lower 70s. Southwest Winds 5 to 10 Mph in the morning shifting to the north in the afternoon.

Tonight 9 Oct Southern Big Horn

Mostly clear. Lows in the lower 40s. Southeast Winds 5 to 10 Mph.

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  • Temperature Real-Time

Tongue River Reservoir Temperature Statistics

October Temperature

Sheridan County Airport (24.9 miles)

  • Lowest 7 October, 2025

    30 °F

  • Average October

    51.8 °F

  • Highest 2 October, 2025

    82.9 °F

Climate (2020–Present)

Sheridan County Airport (24.9 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    61.4 °F
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