Williams Reservoir Weather Forecast

    • 36
    • 42

    Increasing Clouds

    • 41
    • 46

    Mostly Cloudy

    • 40
    • 52

    Breezy

    • 35
    • 52

    Partly Sunny

    • 33
    • 51

    Mostly Sunny

    • 33
    • 50

    Partly Sunny

Today 8 Dec Southern Twin Falls County

Patchy fog this morning. Mostly sunny. Highs 48 to 53.

Tonight 8 Dec Southern Twin Falls County

Mostly cloudy. Lows 37 to 42. Temperature rising into the mid 40s after midnight. Breezy.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Williams Reservoir Temperature Statistics

December Temperature

Joslin Field - Magic Valley Regional Airport (14.3 miles)

  • Lowest 1 December, 2025

    19.9 °F

  • Average December

    36.3 °F

  • Highest 5 December, 2025

    46.9 °F

Climate (2020–Present)

Joslin Field - Magic Valley Regional Airport (14.3 miles)

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

  • Average Low 2020–2025

    39.6 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    62.7 °F
Get WillyWeather+ to remove ads