Sidney Weather Forecast

    • 39
    • 66

    Chance Thunderstorms

    • 40
    • 71

    Becoming Sunny

    • 43
    • 76

    Mostly Sunny

    • 45
    • 78

    Sunny

    • 48
    • 84

    Mostly Sunny

    • 49
    • 86

    Slight Chance Thunderstorms

    • 47
    • 87

    Slight Chance Rain Showers

Today 7 May Cheyenne

Mostly cloudy. A slight chance of Showers late this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 7 May Cheyenne

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this Evening, then partly cloudy after midnight. Lows in the upper 30s. East Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight. Chance of rain 30 percent.

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Sidney Temperature Statistics

May Temperature

Sidney, Sidney Municipal Airport (2.5 miles)

  • Lowest 3 May, 2025

    24.9 °F

  • Average May

    52.7 °F

  • Highest 3 May, 2025

    76.6 °F

Climate (2020–Present)

Sidney, Sidney Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    34.2 °F

  • Average 2020–2025

    49 °F

  • Average High 2020–2025

    64 °F
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