Peru Weather Forecast

    • 45
    • 53

    Rain Showers

    • 46
    • 50

    Rain Showers

    • 25
    • 50

    Rain/Snow

    • 32
    • 44

    Chance Rain/Snow

    • 27
    • 43

    Chance Rain Showers

    • 28
    • 45

    Mostly Sunny

    • 32
    • 50

    Mostly Sunny

Today 3 Mar La Salle

Mostly cloudy with a slight chance of sleet with isolated rain Showers in the Morning, then partly cloudy in the afternoon. Highs in the mid 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

Tonight 3 Mar La Salle

Mostly cloudy. Numerous Showers with isolated Thunderstorms after midnight. Lows in the lower 40s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 70 percent.

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  • Temperature Real-Time

Peru Temperature Statistics

March Temperature

Illinois Valley Regional Airport (1.9 miles)

  • Lowest 1 March, 2025

    21.2 °F

  • Average March

    28.4 °F

  • Highest 1 March, 2025

    32 °F

Climate (2020–Present)

Illinois Valley Regional Airport (1.9 miles)

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  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    52.4 °F

  • Average High 2020–2025

    61.8 °F
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