Princeton Weather Forecast

    • 55
    • 78

    Becoming Sunny

    • 61
    • 79

    Mostly Sunny

    • 63
    • 84

    Partly Sunny

    • 51
    • 75

    Mostly Cloudy

    • 50
    • 69

    Slight Chance Rain Showers

    • 46
    • 61

    Slight Chance Rain Showers

Today 24 Sep Bureau

Mostly sunny. High in the upper 70s. Southwest wind 5 to 10 Mph.

Tonight 24 Sep Bureau

Mostly clear. Low in the mid 50s. South wind 5 to 10 Mph.

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Princeton Temperature Statistics

September Temperature

Illinois Valley Regional Airport (16.2 miles)

  • Lowest 19 September, 2020

    40.6 °F
  • Average September

    65 °F
  • Highest 3 September, 2020

    86.5 °F

Climate (2010–Present)

Illinois Valley Regional Airport (16.2 miles)

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  • Average Low 2010–Present

    43.2 °F
  • Average 2010–Present

    52.3 °F
  • Average High 2010–Present

    61.2 °F
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