Port Byron Weather Forecast

    • 76
    • 88

    Decreasing Clouds

    • 75
    • 94

    Mostly Sunny

    • 72
    • 92

    Chance Thunderstorms

    • 71
    • 86

    Chance Thunderstorms

    • 71
    • 88

    Slight Chance Thunderstorms

    • 72
    • 91

    Slight Chance Thunderstorms

Today 22 Jul Rock Island

Partly sunny. Humid with Highs in the upper 80s. Southeast Winds 5 to 10 Mph. Heat index Values up to 101 in the afternoon.

Tonight 22 Jul Rock Island

Partly cloudy. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph. Heat index Values up to 100 early in the evening.

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Port Byron Temperature Statistics

July Temperature

Davenport Municipal Airport (13 miles)

  • Lowest 14 July, 2025

    60.7 °F
  • Average July

    75.9 °F
  • Highest 3 July, 2025

    90.6 °F

Climate (2020–Present)

Davenport Municipal Airport (13 miles)

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  • Average Low 2020–2025

    41.9 °F
  • Average 2020–2025

    52 °F
  • Average High 2020–2025

    61.9 °F
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