Port Byron Weather Forecast
- 70
- 89
Increasing Clouds
- 67
- 84
Chance Thunderstorms
- 66
- 84
Chance Rain Showers
- 66
- 85
Slight Chance Thunderstorms
- 68
- 87
Sunny
- 70
- 90
Mostly Sunny
Today 8 Jul Rock Island
Sunny. Highs in the upper 80s. Southwest Winds 5 to 10 Mph.
Tonight 8 Jul Rock Island
Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows around 70. South Winds around 5 Mph.
Port Byron Temperature Statistics
July Temperature
Davenport Municipal Airport (13 miles)
Lowest 6 July, 2026
64 °FAverage July
77 °FHighest 1 July, 2026
90 °F
Climate (2021–2026)
Davenport Municipal Airport (13 miles)
Average Low 2021–2026
42.1 °FAverage 2021–2026
52.4 °FAverage High 2021–2026
62.6 °F