Sidney Weather Forecast

    • 32
    • 66

    Mostly Sunny

    • 33
    • 64

    Partly Sunny

    • 35
    • 62

    Mostly Sunny

    • 39
    • 68

    Partly Sunny

    • 36
    • 64

    Chance Rain Showers

    • 31
    • 56

    Chance Rain Showers

    • 27
    • 53

    Partly Sunny

Today 22 Oct Cheyenne

Sunny. Highs in the mid 60s. West Winds around 5 Mph.

Tonight 22 Oct Cheyenne

Mostly clear. Cold with Lows in the lower 30s. South Winds 5 to 10 Mph.

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Sidney Temperature Statistics

October Temperature

Sidney, Sidney Municipal Airport (2.5 miles)

  • Lowest 19 October, 2025

    25 °F

  • Average October

    55.1 °F

  • Highest 3 October, 2025

    88 °F

Climate (2020–Present)

Sidney, Sidney Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    34.3 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    64.1 °F
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