McMannaman Lake Weather Forecast

    • 33
    • 62

    Mostly Sunny

    • 38
    • 65

    Increasing Clouds

    • 42
    • 69

    Partly Sunny

    • 41
    • 70

    Partly Sunny

    • 45
    • 72

    Mostly Sunny

    • 47
    • 76

    Partly Sunny

    • 48
    • 78

    Partly Sunny

Today 25 Apr Moses Lake Area

Sunny. Highs in the upper 50s to lower 60s. North wind 5 to 10 Mph.

Tonight 25 Apr Moses Lake Area

Mostly clear. Lows in the 30s. Light Wind, becoming north 5 to 10 Mph overnight.

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McMannaman Lake Temperature Statistics

April Temperature

Grant County Airport (19.9 miles)

  • Lowest 4 April, 2026

    29.6 °F

  • Average April

    51.3 °F

  • Highest 6 April, 2026

    77.6 °F

Climate (2021–Present)

Grant County Airport (19.9 miles)

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  • Average Low 2021–2026

    41 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    64.2 °F
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