Ninemile Reservoir Weather Forecast

    • 28
    • 49

    Chance Rain/Snow

    • 31
    • 58

    Mostly Sunny

    • 37
    • 66

    Mostly Sunny

    • 40
    • 72

    Mostly Sunny

    • 44
    • 77

    Partly Sunny

    • 47
    • 81

    Mostly Sunny

Today 18 May Sanpete Valley

Mostly cloudy. Rain and snow Showers in the Morning, then a chance of rain Showers, a slight chance of Thunderstorms and snow Showers in the afternoon. Cooler. Little or no accumulation. Highs around 50. Chance of precipitation 90 percent.

Tonight 18 May Sanpete Valley

Mostly cloudy in the evening then clearing. Areas of frost after midnight. Lows in the lower 20s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ninemile Reservoir Temperature Statistics

May Temperature

Delta, Delta Municipal Airport (44.7 miles)

  • Lowest 1 May, 2026

    37.4 °F

  • Average May

    63.6 °F

  • Highest 12 May, 2026

    93.2 °F

Climate (2021–Present)

Delta, Delta Municipal Airport (44.7 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    66.3 °F
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