Halfmoon Lake Weather Forecast

    • 48
    • 75

    Partly Sunny

    • 49
    • 77

    Rain Showers Likely

    • 46
    • 63

    Chance Rain

    • 38
    • 62

    Mostly Cloudy

    • 36
    • 61

    Partly Sunny

    • 42
    • 62

    Chance Rain

    • 37
    • 60

    Chance Rain

Today 25 Mar Moses Lake Area

Mostly sunny. Highs in the upper 60s to mid 70s. Southeast wind 5 to 10 Mph.

Tonight 25 Mar Moses Lake Area

Mostly cloudy. Lows in the mid to upper 40s. Northeast wind 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Halfmoon Lake Temperature Statistics

March Temperature

Grant County Airport (20.5 miles)

  • Lowest 14 March, 2025

    25.8 °F

  • Average March

    44.3 °F

  • Highest 1 March, 2025

    62.7 °F

Climate (2020–Present)

Grant County Airport (20.5 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    64.1 °F
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