Arco Weather Forecast

    • 50
    • 81

    Slight Chance Thunderstorms

    • 53
    • 82

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

    • 50
    • 83

    Chance Rain Showers

    • 43
    • 72

    Chance Rain Showers

    • 42
    • 64

    Rain Showers Likely

    • 44
    • 67

    Chance Rain Showers

Today 29 May Lost River Valleys

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs 76 to 86. Light and variable Winds becoming west 10 to 15 Mph in the afternoon.

Tonight 29 May Lost River Valleys

Mostly clear. Lows 47 to 54. West Winds 10 to 15 Mph. Shifting to northwest after midnight.

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Arco Temperature Statistics

May Temperature

Hailey, Friedman Memorial Airport (51 miles)

  • Lowest 15 May, 2025

    32 °F

  • Average May

    48.9 °F

  • Highest 10 May, 2025

    80.6 °F

Climate (2020–Present)

Hailey, Friedman Memorial Airport (51 miles)

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  • Average Low 2020–2025

    33.8 °F

  • Average 2020–2025

    42.1 °F

  • Average High 2020–2025

    55.8 °F
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