Sibley Lake Weather Forecast

    • 38
    • 71

    Rain Showers

    • 34
    • 55

    Breezy

    • 32
    • 54

    Mostly Sunny

    • 29
    • 55

    Snow Showers

    • 20
    • 33

    Snow Showers

    • 19
    • 29

    Snow Showers Likely

    • 27
    • 40

    Chance Snow Showers

Today 13 May Northeast Bighorn Mountains

Mostly sunny. Isolated Showers and Thunderstorms late in the afternoon. Warmer. Some Thunderstorms may produce gusty Winds. Highs in the lower 70s. Southwest Winds 15 to 25 Mph with Gusts to around 40 Mph. Chance of precipitation 20 percent.

Tonight 13 May Northeast Bighorn Mountains

Partly cloudy with isolated Showers and Thunderstorms early in the Evening, then mostly cloudy with scattered rain Showers and isolated Thunderstorms late in the evening. Mostly clear overnight. Some Thunderstorms may produce gusty Winds. Lows in the upper 30s. Southwest Winds 15 to 25 Mph with Gusts to around 50 Mph. Chance of precipitation 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sibley Lake Temperature Statistics

May Temperature

Sheridan County Airport (22.4 miles)

  • Lowest 6 May, 2026

    16.6 °F

  • Average May

    49.2 °F

  • Highest 11 May, 2026

    75.9 °F

Climate (2021–Present)

Sheridan County Airport (22.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    62.2 °F
Get WillyWeather+ to remove ads