Simpson Lake Weather Forecast

    • 19
    • 34

    Increasing Clouds

    • 26
    • 36

    Snow

    • 6
    • 31

    Snow

    • -4
    • 19

    Partly Sunny

    • 14
    • 22

    Chance Snow

    • 29
    • 39

    Mostly Cloudy

Today 13 Mar Polk

Breezy. Decreasing Clouds. Near steady temperature in the lower 30s. Northwest Winds 15 to 25 Mph.

Tonight 13 Mar Polk

Increasing Clouds. Lows around 18. Northwest Winds up to 10 Mph with Gusts to around 25 Mph shifting to the northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

March Temperature

Rush City Regional Airport (15.5 miles)

  • Lowest 1 March, 2026

    7.9 °F

  • Average March

    35.6 °F

  • Highest 8 March, 2026

    54.1 °F

Climate (2021–Present)

Rush City Regional Airport (15.5 miles)

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  • Average Low 2021–2026

    35.8 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    55.1 °F
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