Grangeville Weather Forecast

    • 59
    • 92

    Patchy Smoke

    • 59
    • 93

    Patchy Smoke

    • 55
    • 84

    Partly Sunny

    • 52
    • 79

    Partly Sunny

    • 47
    • 76

    Partly Sunny

    • 48
    • 77

    Mostly Sunny

    • 52
    • 82

    Mostly Sunny

Today 25 Aug Orofino/Grangeville Region

Mostly sunny. Patchy smoke until late afternoon. A 20 percent chance of rain late in the afternoon. Hot. Highs 89 to 102.

Tonight 25 Aug Orofino/Grangeville Region

Mostly cloudy early in the evening then becoming partly cloudy. Patchy smoke through the night. A 20 percent chance of rain early in the evening. Lows in the upper 50s to mid 60s.

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Grangeville Temperature Statistics

August Temperature

Grangeville - Idaho County Airport (0.6 miles)

  • Lowest 4 August, 2026

    42.8 °F

  • Average August

    69.8 °F

  • Highest 21 August, 2026

    96.8 °F

Climate (2021–2026)

Grangeville - Idaho County Airport (0.6 miles)

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  • Average Low 2021–2026

    37 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    57.9 °F
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