Cedar Mesa Reservoir Weather Forecast

    • 55
    • 84

    Increasing Clouds

    • 53
    • 76

    Mostly Cloudy

    • 48
    • 73

    Chance Rain Showers

    • 48
    • 69

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

    • 51
    • 73

    Partly Sunny

Today 8 Sep Southern Twin Falls County

Partly cloudy. Highs 82 to 87.

Tonight 8 Sep Southern Twin Falls County

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Patchy smoke after midnight. Chance of rain 20 percent. Lows 53 to 58.

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Cedar Mesa Reservoir Temperature Statistics

September Temperature

Joslin Field - Magic Valley Regional Airport (23.6 miles)

  • Lowest 1 September, 2025

    51.1 °F

  • Average September

    73.4 °F

  • Highest 2 September, 2025

    91 °F

Climate (2020–Present)

Joslin Field - Magic Valley Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    62.6 °F
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