Simpson Lake Weather Forecast

    • 67
    • 91

    Mostly Cloudy

    • 59
    • 81

    Chance Rain Showers

    • 58
    • 86

    Mostly Sunny

    • 62
    • 83

    Mostly Sunny

    • 67
    • 86

    Partly Sunny

    • 59
    • 84

    Slight Chance Thunderstorms

Today 30 Jul Polk

Partly sunny. Highs in the upper 80s. Southwest Winds up to 10 Mph.

Tonight 30 Jul Polk

Increasing Clouds. Lows in the upper 60s. South Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

July Temperature

Rush City Regional Airport (15.5 miles)

  • Lowest 23 July, 2026

    47.8 °F

  • Average July

    73.7 °F

  • Highest 26 July, 2026

    95 °F

Climate (2021–2026)

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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