Central Rim Weather Forecast

    • 39
    • 58

    Mostly Sunny

    • 33
    • 56

    Mostly Sunny

    • 33
    • 54

    Partly Sunny

    • 34
    • 52

    Partly Sunny

    • 41
    • 54

    Rain Likely

    • 41
    • 56

    Chance Rain

Today 11 Dec Upper Treasure Valley

Sunny. Highs 56 to 61. North Winds up to 10 Mph.

Tonight 11 Dec Upper Treasure Valley

Mostly clear. Patchy fog after midnight. Lows 30 to 38. Northwest Winds up to 10 Mph in the Evening, becoming light after midnight.

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Central Rim Temperature Statistics

December Temperature

Boise Air Terminal (3.1 miles)

  • Lowest 1 December, 2025

    21 °F

  • Average December

    39.1 °F

  • Highest 9 December, 2025

    55.9 °F

Climate (2020–Present)

Boise Air Terminal (3.1 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    65.9 °F
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