Hamilton Corner Weather Forecast

    • 22
    • 37

    Becoming Sunny

    • 21
    • 37

    Partly Sunny

    • 21
    • 38

    Mostly Sunny

    • 21
    • 39

    Partly Sunny

    • 26
    • 39

    Chance Rain

    • 26
    • 42

    Chance Rain/Snow

Today 28 Dec Lower Treasure Valley

Partly sunny in the Morning, then clearing. Highs 33 to 38. Light Winds.

Tonight 28 Dec Lower Treasure Valley

Mostly clear. Lows 18 to 23. Light Winds.

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Hamilton Corner Temperature Statistics

December Temperature

Ontario Municipal Airport (12.4 miles)

  • Lowest 1 December, 2025

    21 °F

  • Average December

    37.8 °F

  • Highest 17 December, 2025

    57 °F

Climate (2020–Present)

Ontario Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    54.8 °F

  • Average High 2020–2025

    67.2 °F
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