Terreton Weather Forecast

    • 39
    • 53

    Rain Showers

    • 32
    • 53

    Chance Rain Showers

    • 29
    • 52

    Partly Sunny

    • 31
    • 54

    Mostly Sunny

    • 30
    • 61

    Chance Rain Showers

    • 26
    • 52

    Chance Rain Showers

Today 15 Oct Arco/Mud Lake Desert

Rain Showers likely in the morning. Then rain Showers likely and a slight chance of Thunderstorms in the afternoon. Highs 49 to 56. East Winds around 10 Mph. Shifting to south in the afternoon. Chance of precipitation 70 percent.

Tonight 15 Oct Arco/Mud Lake Desert

Mostly cloudy with a chance of rain Showers. Lows 34 to 41. Southwest Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Terreton Temperature Statistics

October Temperature

Idaho Falls Regional Airport (28.6 miles)

  • Lowest 6 October, 2025

    30 °F

  • Average October

    51.7 °F

  • Highest 9 October, 2025

    78.1 °F

Climate (2020–Present)

Idaho Falls Regional Airport (28.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    46.1 °F

  • Average High 2020–2025

    58.9 °F
Get WillyWeather+ to remove ads