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.
Princeton Temperature Statistics
October Temperature
Illinois Valley Regional Airport (16.2 miles)
Lowest 24 October, 2025
29.3 °FAverage October
59.1 °FHighest 3 October, 2025
89.8 °F
Climate (2020–Present)
Illinois Valley Regional Airport (16.2 miles)
Average Low 2020–2025
43.3 °FAverage 2020–2025
52.8 °FAverage High 2020–2025
62.3 °F