⛈️ Delmarva Weather Update — Monday, August 17, 2026
Flash Flood Warning for New Castle, DE, until 8:45 AM EDT.
Today's Weather Story: Most of Delmarva will be mostly dry to partly sunny today, with highs ranging from 86°F at the coast to 90°F in Salisbury. A few showers or thunderstorms remain possible, with the better rain chances around Wilmington, Lewes, Ocean City, and Chincoteague. Low pressure moves through this morning, followed by a cold front later this afternoon and evening.
Across Delmarva:
- Wilmington, DE: Chance rain showers, then a slight chance of showers and thunderstorms; high 88°F; west wind around 5 mph.
- Dover, DE: Slight chance of rain showers; high 88°F; west wind 5 to 10 mph.
- Georgetown, DE: Slight chance of rain showers, then partly sunny; high 89°F; west wind 5 to 10 mph.
- Lewes, DE: Chance rain showers, then partly sunny; high 86°F; west wind 5 to 10 mph.
- Cambridge, MD: Mostly sunny; high 89°F; west wind 6 to 9 mph.
- Salisbury, MD: Slight chance of showers and thunderstorms, then mostly sunny; high 90°F; west wind around 9 mph.
- Ocean City, MD: Chance showers and thunderstorms, then partly sunny; high 86°F; west wind 7 to 12 mph.
- Chincoteague, VA: Chance showers and thunderstorms, then mostly sunny; high 87°F; west wind 8 to 13 mph.
Active Weather Alerts:
- Flash Flood Warning for New Castle, DE, until 8:45 AM EDT.
Severe Weather Outlook: SPC has a General Thunderstorms Risk across Wilmington, Dover, Lewes, Salisbury, Ocean City, Chincoteague, and Cape Charles today. No Delmarva-specific excessive rainfall risk is indicated by WPC guidance.
Why This Setup: A nearby low is passing through this morning, while an approaching cold front provides a focus for another round of showers and thunderstorms later today. West winds and drier air behind the early system should support more sun between any showers.
Looking Ahead: Storm chances increase again late this afternoon into this evening ahead of the front. After a brief lull, showers and thunderstorms return Wednesday night into Thursday and may continue into the upcoming weekend.
Bottom Line: Plan for a warm, mostly dry day across much of Delmarva, but keep an eye out for isolated showers or thunderstorms—especially near the coast and across southern areas.
— US Weather Warriors 🌪️ #DelmarvaWeather #DEwx #MDwx #VAwx