American Falls Reservoir Weather Forecast

    • 17
    • 36

    Increasing Clouds

    • 16
    • 37

    Partly Sunny

    • 20
    • 39

    Partly Sunny

    • 20
    • 41

    Partly Sunny

    • 21
    • 42

    Mostly Sunny

    • 17
    • 41

    Mostly Sunny

Today 10 Jan Lower Snake River Plain

Mostly sunny. Patchy freezing fog in the morning. Highs 31 to 38. Southwest Winds around 10 Mph in the morning. Becoming light and variable.

Tonight 10 Jan Lower Snake River Plain

Increasing Clouds. Patchy freezing fog after midnight. Lows 16 to 23. Light and variable Winds. Becoming northeast up to 10 Mph after midnight.

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American Falls Reservoir Temperature Statistics

January Temperature

Pocatello, Pocatello Regional Airport (4.3 miles)

  • Lowest 1 January, 2026

    28 °F
  • Average January

    39.2 °F
  • Highest 3 January, 2026

    51.1 °F

Climate (2021–Present)

Pocatello, Pocatello Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    35.2 °F
  • Average 2021–2026

    48.6 °F
  • Average High 2021–2026

    61.5 °F
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