Rochester Weather Forecast

    • 50
    • 73

    Rain Showers

    • 41
    • 59

    Mostly Cloudy

    • 42
    • 61

    Partly Sunny

    • 47
    • 65

    Mostly Cloudy

    • 51
    • 69

    Slight Chance Thunderstorms

    • 55
    • 74

    Chance Thunderstorms

Today 18 May Olmsted

Mostly cloudy. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 May Olmsted

Showers. Thunderstorms likely in the Evening, then a chance of Thunderstorms after midnight. Lows in the upper 40s. Southeast Winds 10 to 15 Mph, becoming southwest after midnight. Chance of rain 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rochester Temperature Statistics

May Temperature

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

  • Lowest 6 May, 2026

    33.1 °F

  • Average May

    54.6 °F

  • Highest 15 May, 2026

    86.7 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    40.2 °F

  • Average 2021–2026

    48.3 °F

  • Average High 2021–2026

    56.4 °F
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