Peru Weather Forecast

    • 36
    • 65

    Gradual Clearing

    • 51
    • 73

    Partly Sunny

    • 47
    • 73

    Rain Showers

    • 44
    • 65

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

    • 58
    • 84

    Slight Chance Thunderstorms

Today 11 May Hardy

Cloudy with a slight chance of Showers in the Morning, then mostly sunny in the afternoon. Highs in the lower 60s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 11 May Hardy

Partly cloudy in the Evening, then becoming mostly clear. Cold with Lows in the upper 30s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Peru Temperature Statistics

May Temperature

Petersburg, Grant County Airport (9.9 miles)

  • Lowest 1 May, 2026

    33.8 °F

  • Average May

    56.8 °F

  • Highest 5 May, 2026

    82.9 °F

Climate (2021–Present)

Petersburg, Grant County Airport (9.9 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    67.6 °F
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