Thomas Bay Weather Forecast

    • 41
    • 50

    Rain Showers

    • 38
    • 53

    Chance Rain Showers

    • 39
    • 55

    Mostly Sunny

    • 41
    • 52

    Rain Showers

    • 43
    • 51

    Rain Showers

    • 42
    • 52

    Rain Showers

    • 41
    • 50

    Rain Showers

Today 23 Sep Petersburg Borough

Rain Showers. Highs in the mid 50s.

Tonight 23 Sep Petersburg Borough

Rain Showers early in the Evening, then chance of rain Showers. Lows in the lower 40s. Southeast Winds around 10 Mph.

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Thomas Bay Temperature Statistics

September Temperature

Petersburg (14.3 miles)

  • Lowest 15 September, 2026

    39 °F

  • Average September

    52.8 °F

  • Highest 3 September, 2026

    68 °F

Climate (2021–2026)

Petersburg (14.3 miles)

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  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    43.4 °F

  • Average High 2021–2026

    48.8 °F
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