Idaho Falls Weather Forecast

    • 26
    • 35

    Mostly Cloudy

    • 22
    • 38

    Mostly Cloudy

    • 30
    • 37

    Chance Rain/Snow

    • 19
    • 38

    Chance Snow

    • 19
    • 31

    Mostly Cloudy

    • 17
    • 30

    Mostly Cloudy

    • 17
    • 31

    Chance Snow

Today 5 Dec Upper Snake River Plain

Partly sunny. Areas of fog in the morning. Highs 29 to 36. Northwest Winds up to 10 Mph. Shifting to south in the afternoon.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Idaho Falls Temperature Statistics

December Temperature

Idaho Falls Regional Airport (2.5 miles)

  • Lowest 1 December, 2019

    0 °F
  • Average December

    21.9 °F
  • Highest 2 December, 2019

    30.2 °F

Climate (2010–Present)

Idaho Falls Regional Airport (2.5 miles)

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  • Average Low 2010–Present

    33.5 °F
  • Average 2010–Present

    46.1 °F
  • Average High 2010–Present

    57.9 °F
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