Twin Falls Weather Forecast

    • 55
    • 85

    Slight Chance Thunderstorms

    • 56
    • 86

    Partly Sunny

    • 53
    • 75

    Slight Chance Rain Showers

    • 51
    • 73

    Chance Rain Showers

    • 50
    • 71

    Chance Rain Showers

    • 49
    • 71

    Chance Rain Showers

Today 7 Sep Western Magic Valley

Mostly sunny. Patchy fog and smoke in the morning. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Chance of rain 30 percent. Highs 83 to 88. East Winds around 10 Mph in the Morning, shifting to west in the afternoon. Gusts to 20 Mph.

Tonight 7 Sep Western Magic Valley

Increasing Clouds. Lows 52 to 57. Northwest Winds around 10 Mph in the Evening, shifting to southeast after midnight. Gusts to 20 Mph.

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Twin Falls Temperature Statistics

September Temperature

Joslin Field - Magic Valley Regional Airport (5.6 miles)

  • Lowest 1 September, 2025

    51.1 °F

  • Average September

    74 °F

  • Highest 2 September, 2025

    91 °F

Climate (2020–Present)

Joslin Field - Magic Valley Regional Airport (5.6 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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