Sidney Weather Forecast

    • 30
    • 53

    Breezy

    • 27
    • 63

    Windy

    • 34
    • 52

    Mostly Cloudy

    • 17
    • 55

    Slight Chance Rain/Snow

    • 12
    • 33

    Mostly Cloudy

    • 15
    • 45

    Partly Sunny

Today 8 Dec Cheyenne

Mostly sunny and breezy. Highs in the lower 50s. West Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest 15 to 25 Mph with Gusts up to 40 Mph.

Tonight 8 Dec Cheyenne

Partly cloudy in the Evening, then clearing. Cold with Lows in the lower 30s. Temperature rising into the mid 30s after midnight. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sidney Temperature Statistics

December Temperature

Sidney, Sidney Municipal Airport (2.5 miles)

  • Lowest 1 December, 2025

    3 °F

  • Average December

    27.8 °F

  • Highest 2 December, 2025

    52 °F

Climate (2020–Present)

Sidney, Sidney Municipal Airport (2.5 miles)

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

  • Average Low 2020–2025

    34.5 °F

  • Average 2020–2025

    49.2 °F

  • Average High 2020–2025

    64.2 °F
Get WillyWeather+ to remove ads