Tongue River Reservoir Weather Forecast

    • 31
    • 64

    Mostly Sunny

    • 35
    • 72

    Partly Sunny

    • 23
    • 53

    Rain/Snow

    • 20
    • 43

    Chance Snow Showers

    • 24
    • 52

    Mostly Sunny

    • 33
    • 66

    Partly Sunny

Today 14 Apr Southern Big Horn

Mostly sunny. A 20 percent chance of rain Showers in the afternoon. Highs in the mid 60s. West Winds 5 to 15 Mph.

Tonight 14 Apr Southern Big Horn

Mostly clear. Lows in the upper 30s. South Winds 5 to 10 Mph.

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Tongue River Reservoir Temperature Statistics

April Temperature

Sheridan County Airport (24.9 miles)

  • Lowest 10 April, 2026

    25.6 °F

  • Average April

    44.5 °F

  • Highest 11 April, 2026

    77.6 °F

Climate (2021–Present)

Sheridan County Airport (24.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    62.2 °F
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