Barton Reservoir Weather Forecast

    • 41
    • 69

    Rain

    • 37
    • 55

    Rain Showers Likely

    • 34
    • 56

    Rain Showers

    • 33
    • 54

    Chance Rain Showers

    • 38
    • 61

    Mostly Sunny

    • 43
    • 69

    Mostly Sunny

    • 46
    • 74

    Sunny

Today 4 May Lower Treasure Valley

Partly sunny this Morning, then mostly cloudy with scattered rain Showers this afternoon. Chance of rain 30 percent. Highs 67 to 72. Windy. Southeast Winds 15 to 25 Mph with Gusts to 45 Mph.

Tonight 4 May Lower Treasure Valley

Rain. Chance of rain near 100 percent. Lows 40 to 45. Southwest Winds around 10 Mph with Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barton Reservoir Temperature Statistics

May Temperature

Ontario Municipal Airport (21.7 miles)

  • Lowest 1 May, 2024

    36 °F

  • Average May

    49.6 °F

  • Highest 1 May, 2024

    61 °F

Climate (2019–Present)

Ontario Municipal Airport (21.7 miles)

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  • Average Low 2019–2024

    42.4 °F

  • Average 2019–2024

    54.2 °F

  • Average High 2019–2024

    66.6 °F
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