Princeton Weather Forecast

    • 43
    • 62

    Chance Rain Showers

    • 47
    • 66

    Slight Chance Rain Showers

    • 47
    • 76

    Partly Sunny

    • 41
    • 64

    Mostly Sunny

    • 46
    • 66

    Partly Sunny

    • 50
    • 70

    Chance Rain Showers

Today 7 May Bureau

Patchy frost in the morning. Partly sunny with a chance of rain Showers. A slight chance of Thunderstorms in the afternoon. Highs in the lower 60s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 7 May Bureau

Mostly clear. Patchy frost. Near steady temperature in the upper 30s. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Princeton Temperature Statistics

May Temperature

Illinois Valley Regional Airport (16.2 miles)

  • Lowest 2 May, 2026

    33.8 °F

  • Average May

    55.2 °F

  • Highest 4 May, 2026

    82.4 °F

Climate (2021–Present)

Illinois Valley Regional Airport (16.2 miles)

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  • Average Low 2021–2026

    43.3 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    62.5 °F
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