Simpson Lake Weather Forecast

    • 52
    • 78

    Areas Smoke

    • 63
    • 84

    Areas Smoke

    • 58
    • 90

    Mostly Cloudy

    • 50
    • 68

    Rain Showers

    • 54
    • 76

    Mostly Cloudy

    • 53
    • 74

    Partly Sunny

Today 31 May Polk

Mostly sunny. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 31 May Polk

Partly cloudy. Lows in the lower 50s. Northeast Winds up to 5 Mph shifting to the southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

May Temperature

Rush City Regional Airport (15.5 miles)

  • Lowest 3 May, 2025

    32 °F

  • Average May

    56.5 °F

  • Highest 11 May, 2025

    87.8 °F

Climate (2020–Present)

Rush City Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    35.6 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    54.8 °F
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