Sibley Lake Weather Forecast

    • 48
    • 74

    Increasing Clouds

    • 46
    • 72

    Slight Chance Thunderstorms

    • 35
    • 66

    Rain Showers Likely

    • 30
    • 45

    Rain Showers

    • 36
    • 53

    Chance Thunderstorms

    • 39
    • 57

    Chance Thunderstorms

Today 19 Jun Northeast Bighorn Mountains

Mostly sunny. A 20 percent chance of Showers and Thunderstorms late in the afternoon. Highs in the mid 70s. Southwest Winds 10 to 20 Mph.

Tonight 19 Jun Northeast Bighorn Mountains

Partly cloudy. Slight chance of Showers and Thunderstorms early in the Evening, then slight chance of rain Showers late in the evening. Lows in the upper 40s. South Winds 5 to 15 Mph. Chance of precipitation 20 percent.

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  • Temperature Real-Time

Sibley Lake Temperature Statistics

June Temperature

Sheridan County Airport (22.4 miles)

  • Lowest 6 June, 2025

    35.7 °F

  • Average June

    61.3 °F

  • Highest 10 June, 2025

    86.6 °F

Climate (2020–Present)

Sheridan County Airport (22.4 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    47.1 °F

  • Average High 2020–2025

    61.5 °F
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