Fillmore Weather Forecast

    • 43
    • 61

    Mostly Cloudy

    • 42
    • 63

    Mostly Cloudy

    • 42
    • 62

    Mostly Cloudy

    • 41
    • 59

    Rain

    • 39
    • 57

    Rain

    • 33
    • 53

    Rain Likely

Today 21 Dec Eastern Juab/Millard Counties

Mostly cloudy with a 20 percent chance of rain. Highs around 60.

Tonight 21 Dec Eastern Juab/Millard Counties

Mostly cloudy. Lows in the lower 40s. South Winds 10 to 20 Mph.

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Fillmore Temperature Statistics

December Temperature

Delta, Delta Municipal Airport (29.8 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    36 °F

  • Highest 17 December, 2025

    68 °F

Climate (2021–Present)

Delta, Delta Municipal Airport (29.8 miles)

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  • Average Low 2021–2025

    39.5 °F

  • Average 2021–2025

    53.1 °F

  • Average High 2021–2025

    66.3 °F
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