Tuesday started on the mild side around Phoenix Sky Harbor, with temperatures in the mid‑50s. That cool comfort will not last long. A rapid warm‑up is underway, with sunny skies and a high near 85°F expected this afternoon. A sturdy ridge of high pressure is keeping winds light and skies clear, so it will feel hotter than a typical late‑February day, especially from mid‑ to late‑afternoon.
Afternoons Jump From 80s Into 90s
Temperatures are set to climb into the upper 80s on Wednesday, then push into the low 90s from Thursday through the weekend. Many lower‑desert neighborhoods are likely to see 90°F readings. The National Weather Service Phoenix says daily records could be tied or broken late in the week as a strong ridge holds over the region, and advises residents to keep checking the latest forecast details from the National Weather Service Phoenix.
Dry Air, Low Humidity Raise Fire Concerns
Relative humidity is expected to drop into the teens across the lower deserts during the afternoon hours. That dry air ramps up heat stress for anyone working or exercising outside and also increases fire‑weather potential. Forecast notes point to light winds and good overnight humidity recovery, but officials still urge people to avoid open burning while conditions stay this dry. For how this fits into the broader pattern of this warm spell, see Hoodline's February furnace.
How To Handle the Heat This Week
Shift heavy yard work and workouts to the morning or evening, drink plenty of water, and grab shade breaks during the hottest part of the day. Check in on older neighbors, infants and pets, and never leave people or animals in parked cars, even for a short time. Sunscreen, a hat and light clothing will go a long way if you are outside for any length of time.
Cooler Change on the Horizon
Ensemble guidance shows the ridge weakening sometime after the weekend, which opens the door to a modest cooldown early next week, though the exact timing is still uncertain. If the pattern shifts as expected, temperatures should back away from record territory. Until then, plan on several more days of dry, tranquil weather with very warm afternoons, and keep an eye on the forecast if you have outdoor events scheduled from Friday through Sunday.
