Simpson Lake Weather Forecast

    • 61
    • 86

    Mostly Sunny

    • 64
    • 85

    Partly Sunny

    • 50
    • 81

    Rain Showers

    • 44
    • 61

    Rain Showers Likely

    • 38
    • 55

    Slight Chance Rain Showers

    • 41
    • 63

    Partly Sunny

Today 13 May Polk

Sunny. Highs in the mid 80s. South Winds 5 to 10 Mph.

Tonight 13 May Polk

Mostly clear. Lows in the lower 60s. Southeast Winds 5 to 10 Mph.

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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

    58.2 °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

    45.5 °F

  • Average High 2020–2025

    54.9 °F
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