Rochester Weather Forecast

    • 62
    • 80

    Rain Showers Likely

    • 60
    • 73

    Rain Showers

    • 59
    • 73

    Chance Thunderstorms

    • 59
    • 76

    Chance Thunderstorms

    • 58
    • 77

    Slight Chance Thunderstorms

    • 56
    • 75

    Slight Chance Rain Showers

    • 53
    • 74

    Mostly Sunny

Today 18 Sep Olmsted

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the upper 70s. Light Winds. Chance of rain 50 percent.

Tonight 18 Sep Olmsted

Mostly cloudy with a chance of Thunderstorms. A chance of Showers this Evening, then Showers likely after midnight. Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rochester Temperature Statistics

September Temperature

Rochester - St. Mary's Hospital Heliport (0.6 miles)

  • Lowest 4 September, 2025

    43.7 °F

  • Average September

    64.1 °F

  • Highest 16 September, 2025

    88.5 °F

Climate (2020–Present)

Rochester - St. Mary's Hospital Heliport (0.6 miles)

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  • Average Low 2020–2025

    40.1 °F

  • Average 2020–2025

    48.1 °F

  • Average High 2020–2025

    56.1 °F
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