Simpson Weather Forecast

    • 59
    • 73

    Slight Chance Thunderstorms

    • 56
    • 71

    Chance Thunderstorms

    • 58
    • 76

    Partly Sunny

    • 60
    • 80

    Partly Sunny

    • 64
    • 82

    Slight Chance Thunderstorms

    • 62
    • 84

    Slight Chance Thunderstorms

Today 8 Sep Olmsted

Mostly sunny. Highs in the mid 70s. South Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon.

Tonight 8 Sep Olmsted

Partly cloudy. A slight chance of Showers and Thunderstorms after midnight. Not as cool with Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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Simpson Temperature Statistics

September Temperature

Rochester, Rochester International Airport (3.7 miles)

  • Lowest 4 September, 2025

    41 °F

  • Average September

    56 °F

  • Highest 1 September, 2025

    73.9 °F

Climate (2020–Present)

Rochester, Rochester International Airport (3.7 miles)

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  • Average Low 2020–2025

    37.6 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    56.1 °F
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