Sidney Weather Forecast

    • 43
    • 58

    Mostly Cloudy

    • 39
    • 59

    Mostly Cloudy

    • 45
    • 61

    Rain Showers Likely

    • 36
    • 56

    Rain Showers Likely

    • 33
    • 54

    Breezy

    • 32
    • 56

    Mostly Sunny

    • 32
    • 52

    Mostly Sunny

Today 30 Oct Cheyenne

Partly sunny. Highs in the upper 50s. Southeast Winds around 10 Mph.

Tonight 30 Oct Cheyenne

Mostly cloudy. Patchy fog after midnight. Lows in the lower 40s. South Winds 10 to 15 Mph.

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Sidney Temperature Statistics

October Temperature

Sidney, Sidney Municipal Airport (2.5 miles)

  • Lowest 16 October, 2026

    24.7 °F

  • Average October

    56 °F

  • Highest 5 October, 2026

    91.7 °F

Climate (2021–2026)

Sidney, Sidney Municipal Airport (2.5 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    50.3 °F

  • Average High 2021–2026

    65.4 °F
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