| NWS Forecast for: Rock Island County Issued by: National Weather Service Quad Cities, IA/IL Last Update: 126 PM CDT Sun Aug 9 2026 |  |
This Afternoon: Partly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent. Heat index values up to 103. Tonight: Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows in the lower 70s. South winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 100 early in the evening. Monday: Partly sunny. Humid with highs in the upper 80s. Southeast winds around 5 mph. Heat index values up to 100 in the afternoon. Monday Night: Partly cloudy in the evening, then becoming mostly cloudy. Humid with lows in the lower 70s. Southeast winds around 5 mph. Tuesday: Mostly sunny. A chance of showers and thunderstorms in the morning. Humid with highs in the upper 80s. South winds 5 to 10 mph, becoming southwest in the afternoon. Chance of rain 50 percent. Heat index values up to 101 in the afternoon. Tuesday Night: Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent. Wednesday: A chance of showers in the morning. Partly sunny. Highs in the mid 80s. Chance of rain 50 percent. Wednesday Night: Partly cloudy. Lows in the upper 60s. Thursday Through Friday: Mostly cloudy with a chance of showers. Highs in the upper 70s. Lows in the mid 60s. Chance of rain 50 percent. Friday Night: Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Chance of rain 60 percent. Saturday: A chance of showers in the morning. Mostly cloudy. Highs in the upper 70s. Chance of rain 50 percent. | |
| Zone Forecast: Rock Island County | |
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