Wilmington, Delaware – Thunderstorms could disrupt plans across Delaware Sunday afternoon as June kicks off with heavy rain, gusty winds, and rapidly changing skies.
According to the National Weather Service in Mount Holly, a line of showers and storms will develop by 2 p.m. Sunday across New Castle County, with an 80% chance of rain and brief downpours. Winds from the west may gust to 20 mph. Drivers along I-95 should prepare for reduced visibility and wet pavement through Sunday evening.
Skies will clear Sunday night, setting up a calmer stretch of summer-like weather through midweek. Monday will be mostly sunny, with a high near 74°F and light winds. The warm-up continues Tuesday with sun and a high near 83°F, and temperatures are expected to climb even higher by Thursday.
While storm risks drop after Sunday, smoke from Canadian wildfires may linger into early next week, affecting air quality for sensitive groups in the region.
Extended 5-Day Wilmington Forecast (June 1–5):
- Sunday: Showers & storms likely after 2 p.m. (High 71°F)
- Monday: Mostly sunny (High 74°F)
- Tuesday: Sunny, warmer (High 83°F)
- Wednesday: Mostly sunny (High 88°F)
- Thursday: Slight chance of showers, partly cloudy (High 85°F)


