Davenport, Iowa – Showers and thunderstorms could dampen weekend plans across eastern Iowa and western Illinois starting Friday afternoon, July 18, with a rising chance of storms through Saturday. Drivers along I-74 and I-80 should prepare for potential delays and slick roads Friday night as thunderstorms move into the Quad Cities region.
According to the National Weather Service, showers are expected to begin after 1 p.m. Friday in Davenport, with a 50% chance of thunderstorms developing Friday night. Rain and thunder become more likely Saturday, with a 60% chance of storms after 1 p.m. The heaviest activity is likely Saturday afternoon and evening, possibly impacting outdoor events and travel.
Cities across Scott and Rock Island counties, including Bettendorf and Moline, should remain weather-aware. Rainfall may be heavy at times, especially during isolated storms. Residents are urged to avoid flooded roads and secure outdoor items.
Conditions calm slightly Sunday, though a 40% storm chance remains through early afternoon. Temperatures rebound by Monday, with highs climbing into the upper 80s and low 90s next week. A heat wave may develop as early as Tuesday.
📅 Five-Day Weather Outlook (July 18–23):
- Friday (July 18): Partly sunny, 20% chance of showers after 1 p.m., high 82°F
- Friday Night: 50% chance of thunderstorms, low 71°F
- Saturday: Showers likely after 1 p.m., high 87°F, 60% chance of rain
- Sunday: 40% storm chance early, high 84°F
- Monday: Mostly sunny, 40% storm chance by afternoon, high 88°F
- Tuesday: Sunny and hot, high 93°F
- Wednesday: Sunny, high 94°F
More storms may return Monday night into Tuesday. Stay alert for future advisories through the National Weather Service.
