Port Byron Weather Forecast

    • 69
    • 86

    Decreasing Clouds

    • 66
    • 90

    Mostly Sunny

    • 66
    • 89

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 62
    • 85

    Partly Sunny

    • 57
    • 81

    Chance Thunderstorms

    • 56
    • 72

    Mostly Cloudy

Today 21 Sep Rock Island

Mostly cloudy with Periods of Showers and Thunderstorms early in the Morning, then mostly cloudy with isolated Showers late in the morning. Mostly sunny in the afternoon. Near record high. High in the lower 90s. South wind 10 to 15 Mph. Chance of rain 90 percent. Heat index Readings to 99.

Tonight 21 Sep Rock Island

Mostly clear. Low in the upper 60s. South wind 5 to 10 Mph.

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Port Byron Temperature Statistics

September Temperature

Davenport, Davenport Municipal Airport (13 miles)

  • Lowest 2 September, 2017

    44.1 °F
  • Average September

    64.1 °F
  • Highest 15 September, 2017

    88 °F

Climate (2010–Present)

Davenport, Davenport Municipal Airport (13 miles)

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  • Average Low 2010–Present

    40.2 °F
  • Average 2010–Present

    50.4 °F
  • Average High 2010–Present

    59.5 °F
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