Princeton Weather Forecast

    • 51
    • 60

    Rain

    • 42
    • 61

    Rain Likely

    • 41
    • 67

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

    • 45
    • 67

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

Today 23 Sep Mercer

Mostly cloudy. Patchy fog this morning. A slight chance of rain this Morning, then a chance of Showers this afternoon. Cooler. Near steady temperature in the upper 50s. East Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 23 Sep Mercer

A chance of rain in the Evening, then rain after midnight. Patchy fog after midnight. Lows in the lower 50s. East Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Princeton Temperature Statistics

September Temperature

Bluefield, Mercer County Airport (7.5 miles)

  • Lowest 14 September, 2026

    56.6 °F

  • Average September

    72.6 °F

  • Highest 3 September, 2026

    87.7 °F

Climate (2021–2026)

Bluefield, Mercer County Airport (7.5 miles)

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  • Average Low 2021–2026

    45.2 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    62.2 °F
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