Granite Lake Weather Forecast

    • 54
    • 75

    Rain Showers Likely

    • 48
    • 60

    Patchy Smoke

    • 52
    • 68

    Mostly Sunny

    • 57
    • 72

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

    • 47
    • 63

    Mostly Sunny

    • 45
    • 62

    Mostly Sunny

Today 22 Aug Kootenai/Cabinet Region

Mostly cloudy. Slight chance of rain until late Afternoon, then slight chance of Showers and Thunderstorms late in the afternoon. Patchy smoke in the morning. Chance of precipitation 20 percent. Hot. Some Thunderstorms may produce gusty Winds. Highs in the 90s.

Tonight 22 Aug Kootenai/Cabinet Region

Mostly cloudy. Chance of rain Showers through the night. Chance of Thunderstorms in the Evening, then slight chance of Thunderstorms after midnight. Patchy smoke in the evening. Chance of precipitation 50 percent. Some Thunderstorms may produce gusty Winds. Lows in the 50s.

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Granite Lake Temperature Statistics

August Temperature

Sandpoint, Sandpoint Airport (39.8 miles)

  • Lowest 3 August, 2026

    41 °F

  • Average August

    65.9 °F

  • Highest 20 August, 2026

    91.4 °F

Climate (2021–2026)

Sandpoint, Sandpoint Airport (39.8 miles)

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  • Average Low 2021–2026

    37.1 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    57 °F
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