Overview
- Forecasters say the hottest, most humid conditions will arrive Tuesday–Wednesday, with National Weather Service products warning feels‑like values near 95–103°F in southern New England and triple‑digit heat in parts of Southern California and the interior West.
- Local warnings and precautions are in effect now, including Heat Advisories/Extreme Heat Watches across New England and California, Status Yellow high‑temperature warnings in parts of western Ireland, and targeted nighttime water restrictions on 25 supplies there.
- Coastal communities face beach hazard statements, elevated surf, strong rip currents, and a large high tide that could cause localized flooding in low‑lying areas along the California coast.
- The Southwest remains especially vulnerable to wildfire growth because long stretches of extreme heat have dried fuels, and the National Interagency Fire Center reports year‑to‑date burned acreage far above the 10‑year average.
- Most forecasts show little rain through midweek but expect modest relief late in the week as a front raises storm chances by the weekend, which should lower humidity and reduce but not eliminate localized hazards.