Sprague Lake Weather Forecast

    • 46
    • 74

    Becoming Sunny

    • 48
    • 75

    Partly Sunny

    • 52
    • 80

    Mostly Sunny

    • 52
    • 83

    Mostly Sunny

    • 52
    • 81

    Mostly Cloudy

    • 43
    • 72

    Mostly Cloudy

Today 20 May Upper Columbia Basin

Mostly cloudy in the morning then clearing. Highs in the 70s. Northwest wind 5 to 10 Mph. Gusts up to 20 Mph in the afternoon.

Tonight 20 May Upper Columbia Basin

Mostly clear. Lows in the mid 40s to lower 50s. North wind 5 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sprague Lake Temperature Statistics

May Temperature

Fairchild Air Force Base (31.1 miles)

  • Lowest 17 May, 2026

    31.6 °F

  • Average May

    58 °F

  • Highest 12 May, 2026

    81.7 °F

Climate (2021–Present)

Fairchild Air Force Base (31.1 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    49.3 °F

  • Average High 2021–2026

    58.9 °F
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