Simpson Lake Weather Forecast

    • 38
    • 57

    Rain Showers

    • 33
    • 53

    Increasing Clouds

    • 33
    • 56

    Partly Sunny

    • 32
    • 53

    Partly Sunny

    • 32
    • 55

    Partly Sunny

    • 40
    • 62

    Partly Sunny

    • 40
    • 66

    Slight Chance Rain Showers

Today 27 Apr Polk

Rain Showers and chance of Thunderstorms. Near steady temperature in the mid 50s. Southeast Winds 5 to 15 Mph. Chance of precipitation near 100 percent.

Tonight 27 Apr Polk

Cloudy. Rain Showers and chance of Thunderstorms early in the Evening, then rain Showers likely late in the evening. Chance of rain Showers after midnight. Lows in the upper 30s. Northwest Winds 10 to 20 Mph. Chance of precipitation 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

April Temperature

Rush City Regional Airport (15.5 miles)

  • Lowest 7 April, 2026

    14 °F

  • Average April

    41.6 °F

  • Highest 12 April, 2026

    81.1 °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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