Wilmington, Delaware – Showers and a rising risk of thunderstorms will keep Delaware residents on alert through the rest of this spring week, especially for anyone traveling Route 13 near Wilmington. Tuesday night marks the first round of changing weather, with Thursday bringing a stronger chance for storms that could impact travel and outdoor plans across New Castle County.
According to the National Weather Service, clouds will increase throughout Tuesday, with a slight chance of showers developing late between 11 p.m. and 2 a.m. South winds may gust up to 20 mph, prompting drivers and residents to secure loose items and prepare for wet roads by Wednesday morning. While Wednesday remains mostly cloudy and mild, conditions take a turn on Thursday.
Thunderstorm chances rise Thursday evening, particularly after 8 p.m., as a frontal system approaches the region. Wilmington and surrounding areas—including major corridors like Route 13 and I-495—could see sudden downpours, lightning, and reduced visibility. The NWS highlights a 40% chance of storms, urging residents to monitor alerts and limit non-essential travel during active weather. Power outages and brief flooding on local roads are possible.
Friday continues the unsettled pattern with another 40% risk of showers, but temperatures stay warm, nearing 84°F. The weekend brings a break: Saturday turns partly sunny with a high near 71°F, while Sunday offers more sun and a cooler high of 69°F—ideal for outdoor activities, pending any leftover wet spots.
Stay tuned for updated advisories as Thursday’s thunderstorms approach. The National Weather Service will issue additional alerts if the risk increases, so check local sources before heading out. Wilmington residents can expect this spring’s unsettled stretch to continue into the weekend, with the next clear, mild day likely arriving by Saturday.