Port Byron Weather Forecast

    • 43
    • 65

    Mostly Sunny

    • 48
    • 67

    Mostly Cloudy

    • 52
    • 65

    Rain Showers Likely

    • 55
    • 74

    Mostly Cloudy

    • 56
    • 79

    Partly Sunny

    • 59
    • 83

    Partly Sunny

Today 20 May Rock Island

Sunny. Highs in the mid 60s. Northeast Winds around 10 Mph.

Tonight 20 May Rock Island

Mostly clear. Lows in the mid 40s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Port Byron Temperature Statistics

May Temperature

Davenport Municipal Airport (13 miles)

  • Lowest 7 May, 2026

    32 °F

  • Average May

    59.8 °F

  • Highest 17 May, 2026

    86 °F

Climate (2021–Present)

Davenport Municipal Airport (13 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    62.6 °F
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