Petersburg Weather Forecast

    • 51
    • 66

    Rain

    • 46
    • 58

    Rain

    • 49
    • 54

    Rain

    • 49
    • 56

    Rain

    • 47
    • 57

    Rain

    • 45
    • 56

    Rain

Today 16 Sep Petersburg Borough

Rain in the morning. Slight chance of rain in the afternoon. Highs 66 to 72. Southeast Winds around 10 Mph.

Tonight 16 Sep Petersburg Borough

Rain. Lows in the lower 50s. Southeast Winds 10 to 15 Mph.

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Petersburg Temperature Statistics

September Temperature

Petersburg (0.6 miles)

  • Lowest 14 September, 2025

    39 °F

  • Average September

    54.1 °F

  • Highest 2 September, 2025

    66.9 °F

Climate (2020–Present)

Petersburg (0.6 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    43.5 °F

  • Average High 2020–2025

    48.9 °F
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