Forecast Updated on Tuesday, June 30, 2026, at 4:05am by WBOC Chief Meteorologist Mike Lichniak.
Today: Partly to mostly sunny. Highs: 87-92 (70-75 Beach). Winds: E-SE 5-20+ mph.
Tonight: Partly cloudy to mostly clear. Lows: 65-72. Winds: SE-S 5-15 mph.
Wednesday: Mostly sunny. Highs: 92-98 (75-82 Beach). Winds: S 5-20+ mph. Feels Like Temperatures: 100-106.
Wednesday Night: Mostly clear to partly cloudy. Lows: 70-76. Winds: S-SW 5-15 mph.
Thursday: Mostly sunny and very hot. Highs: 96-102 (80-90 Beach). Winds: S-SW 5-15 mph. Feels Like Temperatures: 102-110.
Friday: Mostly sunny and extreme heat with humidity. Highs: 98-104 (80-94 Beach). Winds: SW-W 5-20+ mph. Feels Like Temperatures: 108-118.
The sexy term is the “Heat Dome” will establish across the eastern third of the US over the coming days and will build to us having the hottest day of the year across Delmarva by later this week and into the start of the long holiday weekend. This afternoon will still be tolerable with highs in the 80s and some 90s and still the humidity will not have skyrocketed yet. This will happen overnight tonight into Wednesday when temperatures put the boosters up to full. Wednesday will come with highs in the mid and upper 90s with some of us to near 100 degrees. The Heat Index on Wednesday will top 100-108 in areas. The ridge of high pressure will park itself right over Delmarva on Wednesday night to set up the hottest days of the year.
Thursday will see temperatures for most into the 90s and 100s with heat index values approaching 110 in some places. Friday will be the hottest day of the year. Barring a subtle wind shift between now and Friday, we are projecting most of us into the low to mid 100s (101-108) for an air temperature with heat index values approaching 120 in some areas. Even at the beach, we are expecting temperatures to climb into the 90s…if not reach 100 in our northern beach towns (Lewes, Rehoboth, Dewey).
The 4th of July is still looking very hot with highs into the 90s and 100s across Delmarva. Mother Nature may finally have enough juice with her to fire up some of her own fireworks by Saturday as a cold front will be slowly approaching from the west and could trigger off a few showers and storms. More chances for showers and storms will be around by Sunday and Monday and will break this monster ridge down finally to bring relief for the middle of next week.
