Tongue River Reservoir State Park Weather Forecast

    • 61
    • 96

    Patchy Smoke

    • 63
    • 92

    Mostly Cloudy

    • 64
    • 93

    Chance Thunderstorms

    • 61
    • 88

    Chance Thunderstorms

    • 66
    • 99

    Hot

    • 66
    • 101

    Slight Chance Thunderstorms

    • 64
    • 96

    Slight Chance Thunderstorms

Today 20 Jul Southern Big Horn

Sunny. Patchy smoke. Highs in the mid 90s. North Winds 5 to 15 Mph.

Tonight 20 Jul Southern Big Horn

Mostly cloudy. Patchy smoke in the evening. Lows around 60. Northeast Winds 5 to 15 Mph.

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  • Temperature Real-Time

Tongue River Reservoir State Park Temperature Statistics

July Temperature

Sheridan County Airport (25.5 miles)

  • Lowest 1 July, 2026

    46.7 °F

  • Average July

    75.5 °F

  • Highest 12 July, 2026

    109.7 °F

Climate (2021–2026)

Sheridan County Airport (25.5 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    62.1 °F
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