Ashton Reservoir Weather Forecast

    • 10
    • 30

    Snow Likely

    • 18
    • 27

    Mostly Cloudy

    • 12
    • 30

    Mostly Cloudy

    • 13
    • 34

    Partly Sunny

    • 17
    • 35

    Mostly Cloudy

    • 18
    • 36

    Mostly Cloudy

Today 8 Jan Teton Valley

Mostly cloudy with a chance of snow. Snow accumulation of 1 to 2 Inches. Highs around 29.

Tonight 8 Jan Teton Valley

Partly cloudy. Colder. Lows 5 to 13.

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  • Temperature Real-Time

Ashton Reservoir Temperature Statistics

January Temperature

Rexburg, Rexburg-Madison County Airport (23.6 miles)

  • Lowest 1 January, 2026

    24.1 °F

  • Average January

    35.1 °F

  • Highest 3 January, 2026

    41 °F

Climate (2021–Present)

Rexburg, Rexburg-Madison County Airport (23.6 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    45.9 °F

  • Average High 2021–2026

    57.9 °F
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