Halfmoon Lake Weather Forecast

    • 33
    • 41

    Chance Rain

    • 42
    • 51

    Rain Likely

    • 40
    • 58

    Rain Likely

    • 41
    • 55

    Rain Likely

    • 33
    • 55

    Partly Sunny

    • 33
    • 54

    Partly Sunny

Today 21 Feb Moses Lake Area

Mostly cloudy. Patchy dense freezing fog in the Morning, then patchy fog in the afternoon. Highs around 40. Light wind.

Tonight 21 Feb Moses Lake Area

Cloudy with a 20 percent chance of rain. Lows in the lower to mid 30s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Halfmoon Lake Temperature Statistics

February Temperature

Grant County Airport (20.5 miles)

  • Lowest 12 February, 2025

    1.9 °F

  • Average February

    26.7 °F

  • Highest 1 February, 2025

    45.6 °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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