Simpson Lake Weather Forecast

    • 31
    • 55

    Slight Chance Rain Showers

    • 35
    • 58

    Mostly Sunny

    • 39
    • 61

    Mostly Sunny

    • 46
    • 64

    Rain Showers Likely

    • 40
    • 58

    Rain Showers Likely

    • 40
    • 56

    Chance Rain Showers

Today 3 Apr Okanogan Highlands

Sunny. A chance of snow Showers in the afternoon. Highs in the 50s. North wind 5 to 15 Mph in the afternoon. Gusts up to 25 Mph. Chance of precipitation 20 percent.

Tonight 3 Apr Okanogan Highlands

Mostly clear. Lows in the upper 20s to mid 30s. Gusts up to 20 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

April Temperature

Deer Park, Deer Park Airport (47.2 miles)

  • Lowest 1 April, 2025

    36 °F

  • Average April

    39.7 °F

  • Highest 1 April, 2025

    46.9 °F

Climate (2020–Present)

Deer Park, Deer Park Airport (47.2 miles)

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  • Average Low 2020–2025

    35.2 °F

  • Average 2020–2025

    47.8 °F

  • Average High 2020–2025

    59.5 °F
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