Princeton Weather Forecast

    • 37
    • 57

    Mostly Cloudy

    • 34
    • 55

    Partly Sunny

    • 31
    • 49

    Chance Rain Showers

    • 39
    • 54

    Mostly Sunny

    • 32
    • 61

    Mostly Sunny

    • 43
    • 63

    Mostly Sunny

    • 37
    • 65

    Partly Sunny

Today 30 Oct Bureau

Mostly sunny. Highs in the upper 50s. Northwest Winds 5 to 10 Mph.

Tonight 30 Oct Bureau

Mostly cloudy. Lows in the upper 30s. Northwest Winds 5 to 10 Mph.

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Princeton Temperature Statistics

October Temperature

Illinois Valley Regional Airport (16.2 miles)

  • Lowest 24 October, 2025

    29.3 °F
  • Average October

    59.1 °F
  • Highest 3 October, 2025

    89.8 °F

Climate (2020–Present)

Illinois Valley Regional Airport (16.2 miles)

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  • Average Low 2020–2025

    43.3 °F
  • Average 2020–2025

    52.8 °F
  • Average High 2020–2025

    62.3 °F
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