Terreton Weather Forecast

    • 25
    • 56

    Rain/Snow Likely

    • 24
    • 51

    Chance Snow

    • 30
    • 56

    Partly Sunny

    • 30
    • 55

    Chance Rain

    • 31
    • 58

    Chance Rain

    • 33
    • 60

    Slight Chance Thunderstorms

Today 23 Apr Arco/Mud Lake Desert

Partly sunny. A chance of rain Showers and snow Showers in the morning. Then a chance of rain Showers, snow Showers and a slight chance of Thunderstorms in the afternoon. Windy. Snow accumulation up to 1 inch. Highs 43 to 53. West Winds 20 to 30 Mph.

Tonight 23 Apr Arco/Mud Lake Desert

Mostly cloudy with a chance of snow Showers in the evening. Then partly cloudy with a slight chance of snow Showers after midnight. Breezy, Colder. Little or no snow accumulation. Lows 23 to 31. Northwest Winds 15 to 25 Mph. Becoming west around 10 Mph after midnight. Chance of precipitation 50 percent.

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Terreton Temperature Statistics

April Temperature

Idaho Falls Regional Airport (28.6 miles)

  • Lowest 18 April, 2026

    20.6 °F

  • Average April

    45.6 °F

  • Highest 10 April, 2026

    76.6 °F

Climate (2021–Present)

Idaho Falls Regional Airport (28.6 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    59.9 °F
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