Bonnie Lake Weather Forecast

    • 43
    • 66

    Gradual Clearing

    • 46
    • 74

    Mostly Sunny

    • 47
    • 78

    Mostly Sunny

    • 47
    • 77

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 48
    • 82

    Mostly Sunny

Today 15 Sep Washington Palouse

Patchy fog in the morning. Mostly cloudy. Highs in the mid 60s to lower 70s. Light wind.

Tonight 15 Sep Washington Palouse

Mostly cloudy in the evening then clearing. Patchy fog overnight. Lows in the 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bonnie Lake Temperature Statistics

September Temperature

Spokane, Spokane International Airport (23.6 miles)

  • Lowest 5 September, 2026

    45.6 °F

  • Average September

    61.4 °F

  • Highest 1 September, 2026

    83.6 °F

Climate (2021–2026)

Spokane, Spokane International Airport (23.6 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    60.1 °F
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