Riordan Lake Weather Forecast

    • 52
    • 72

    Becoming Sunny

    • 55
    • 74

    Mostly Sunny

    • 59
    • 79

    Partly Sunny

    • 59
    • 80

    Slight Chance Thunderstorms

    • 52
    • 71

    Slight Chance Thunderstorms

    • 53
    • 71

    Mostly Sunny

Today 18 Aug West Central Mountains

Decreasing Clouds. Isolated Showers this afternoon. Chance of rain 20 percent. Highs 75 to 89.

Tonight 18 Aug West Central Mountains

Mostly clear. Patchy smoke. Lows 48 to 59.

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  • Temperature Real-Time

Riordan Lake Temperature Statistics

August Temperature

McCall Airport (32.3 miles)

  • Lowest 4 August, 2026

    39.7 °F

  • Average August

    66.2 °F

  • Highest 1 August, 2026

    90.6 °F

Climate (2021–2026)

McCall Airport (32.3 miles)

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  • Average Low 2021–2026

    31 °F

  • Average 2021–2026

    42.9 °F

  • Average High 2021–2026

    55 °F
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