Williams Reservoir Weather Forecast

    • 38
    • 55

    Mostly Sunny

    • 43
    • 62

    Breezy

    • 31
    • 58

    Chance Snow Showers

    • 29
    • 41

    Snow Showers Likely

    • 27
    • 40

    Chance Rain/Snow

    • 31
    • 45

    Mostly Sunny

Today 23 Oct Southern Twin Falls County

Sunny. Highs 58 to 63.

Tonight 23 Oct Southern Twin Falls County

Mostly clear. Lows 35 to 41.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williams Reservoir Temperature Statistics

October Temperature

Joslin Field - Magic Valley Regional Airport (14.3 miles)

  • Lowest 21 October, 2025

    27 °F

  • Average October

    50.6 °F

  • Highest 9 October, 2025

    82 °F

Climate (2020–Present)

Joslin Field - Magic Valley Regional Airport (14.3 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    62.6 °F
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