Twin Falls Weather Forecast

    • 50
    • 80

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

    • 53
    • 80

    Mostly Sunny

    • 47
    • 84

    Slight Chance Rain Showers

    • 40
    • 62

    Mostly Sunny

    • 42
    • 67

    Mostly Sunny

Today 9 Sep Western Magic Valley

Sunny. Highs 78 to 83. Light Winds this Morning, becoming west around 10 Mph with Gusts to 20 Mph this afternoon.

Tonight 9 Sep Western Magic Valley

Mostly clear. Lows 45 to 50. West Winds 10 to 15 Mph in the Evening, shifting to southeast after midnight.

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Twin Falls Temperature Statistics

September Temperature

Joslin Field - Magic Valley Regional Airport (5.6 miles)

  • Lowest 5 September, 2026

    44.7 °F

  • Average September

    63.5 °F

  • Highest 1 September, 2026

    86.6 °F

Climate (2021–2026)

Joslin Field - Magic Valley Regional Airport (5.6 miles)

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  • Average Low 2021–2026

    39.9 °F

  • Average 2021–2026

    51.5 °F

  • Average High 2021–2026

    63.3 °F
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