Wilmington, Delaware – Thunderstorms could disrupt Sunday evening plans in Wilmington, with heavy rain and lightning possible after 11 p.m. and into early Monday.
According to the National Weather Service, a chance of showers and storms will increase after sunset Sunday, with the highest likelihood arriving overnight. While Sunday afternoon looks mostly sunny with highs near 89°F, conditions will grow more humid by nightfall. Rainfall totals are expected to remain light, but isolated downpours could affect parts of New Castle County — especially along I-95 and US-202.
Looking ahead, Monday brings a renewed chance of storms after 3 p.m., with temperatures soaring to 91°F. Winds will shift from southwest at 10 to 15 mph, pushing the heat index even higher. Tuesday also brings a strong storm chance — especially between 2 p.m. and 8 p.m. — as another wave of moisture sweeps through.
Prepare now: Charge your devices, avoid outdoor work during the hottest part of the day, and secure any July 4th plans that may be weather-dependent. Independence Day currently looks dry and sunny, with highs near 88°F, though muggy air may linger.
🗓️ Wilmington 6-Day Forecast: June 29 – July 4
- Sunday: Mostly sunny, high near 89°F.
- Monday: Scattered storms after 3 p.m., high 91°F.
- Monday Night: Showers and storms likely, low 75°F.
- Tuesday: Showers/storms continue, high 88°F.
- Tuesday Night: More storms possible through 2 a.m., low 71°F.
- Wednesday: Mostly clear, high near 86°F.
- Thursday (4th of July): Sunny, high near 88°F.
