Princeton Weather Forecast

    • 15
    • 28

    Decreasing Clouds

    • 28
    • 36

    Mostly Cloudy

    • 33
    • 37

    Rain Likely

    • 9
    • 45

    Slight Chance Rain/Snow

    • 24
    • 31

    Mostly Cloudy

    • 22
    • 44

    Mostly Cloudy

Today 15 Dec Bureau

Mostly cloudy. Patchy blowing snow. Not as cool. Near steady temperature in the mid 20s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 15 Dec Bureau

Partly cloudy in the Evening, then becoming mostly cloudy. Patchy freezing fog. Not as cool with Lows around 15. South Winds around 5 Mph.

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Princeton Temperature Statistics

December Temperature

Illinois Valley Regional Airport (16.2 miles)

  • Lowest 5 December, 2025

    0 °F

  • Average December

    22.5 °F

  • Highest 10 December, 2025

    44.2 °F

Climate (2020–Present)

Illinois Valley Regional Airport (16.2 miles)

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  • Average Low 2020–2025

    43.1 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    62.1 °F
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