Petersburg Weather Forecast

    • 59
    • 83

    Decreasing Clouds

    • 54
    • 73

    Rain Showers Likely

    • 68
    • 77

    Rain Showers Likely

    • 61
    • 82

    Rain Showers

    • 61
    • 74

    Rain Showers Likely

    • 57
    • 77

    Chance Rain Showers

Today 12 Sep Muscatine

Partly cloudy. Humid with Highs in the lower 80s. Southwest Winds 5 to 10 Mph, becoming northwest this afternoon.

Tonight 12 Sep Muscatine

Partly cloudy in the Evening, then becoming mostly clear. Less humid with Lows around 60. North Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Petersburg Temperature Statistics

September Temperature

Davenport Municipal Airport (10.6 miles)

  • Lowest 7 September, 2026

    58.6 °F

  • Average September

    79.6 °F

  • Highest 4 September, 2026

    95.6 °F

Climate (2021–2026)

Davenport Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    62.6 °F
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