Fairchild Reservoir Weather Forecast

    • 58
    • 79

    Mostly Sunny

    • 52
    • 82

    Partly Sunny

    • 47
    • 59

    Chance Rain Showers

    • 50
    • 64

    Slight Chance Thunderstorms

    • 53
    • 71

    Chance Rain Showers

    • 50
    • 62

    Chance Rain Showers

    • 51
    • 67

    Slight Chance Thunderstorms

Today 24 May Upper Weiser River

Sunny. Highs 80 to 86. Southwest Winds around 10 Mph.

Tonight 24 May Upper Weiser River

Mostly clear. Lows 52 to 57. East Winds up to 10 Mph.

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  • Temperature Real-Time

Fairchild Reservoir Temperature Statistics

May Temperature

Ontario Municipal Airport (31.7 miles)

  • Lowest 1 May, 2026

    36.6 °F

  • Average May

    63 °F

  • Highest 12 May, 2026

    91.7 °F

Climate (2021–Present)

Ontario Municipal Airport (31.7 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    67.3 °F
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