Seneca Weather Forecast

    • 60
    • 86

    Mostly Cloudy

    • 55
    • 82

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 56
    • 83

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

    • 59
    • 83

    Mostly Sunny

Today 29 May La Salle

Partly cloudy. Highs in the mid 80s. Southeast Winds around 5 Mph.

Tonight 29 May La Salle

Mostly cloudy. Lows around 60. East Winds around 5 Mph.

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Seneca Temperature Statistics

May Temperature

Joliet Regional Airport (26.1 miles)

  • Lowest 2 May, 2026

    29.8 °F

  • Average May

    61.4 °F

  • Highest 27 May, 2026

    87.6 °F

Climate (2021–Present)

Joliet Regional Airport (26.1 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    63.4 °F
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