Crystal Lake Reservoir Weather Forecast

    • 38
    • 62

    Increasing Clouds

    • 36
    • 59

    Breezy

    • 25
    • 63

    Chance Rain

    • 31
    • 41

    Breezy

    • 33
    • 63

    Breezy

    • 26
    • 47

    Partly Sunny

Today 15 Dec North Sioux

Mostly sunny. Highs in the upper 50s. West Winds 10 to 15 Mph.

Tonight 15 Dec North Sioux

Partly cloudy in the Evening, then becoming mostly cloudy. Cold with Lows in the lower 30s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Reservoir Temperature Statistics

December Temperature

Chadron, Chadron Municipal Airport (36.7 miles)

  • Lowest 1 December, 2025

    0 °F

  • Average December

    31.3 °F

  • Highest 11 December, 2025

    66.9 °F

Climate (2020–Present)

Chadron, Chadron Municipal Airport (36.7 miles)

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

  • Average Low 2020–2025

    35.5 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    63.6 °F
Get WillyWeather+ to remove ads