Phoenix, AZ – Arizona drivers and residents should prepare for rising spring temperatures as Phoenix heats up to 96°F by Tuesday, with highs nearing 99°F by Thursday along the I-10 corridor. Sunny skies dominate the forecast, but the heat will steadily intensify, creating elevated fire risks and potential strain on outdoor activities and travel.
According to the National Weather Service, Tuesday’s forecast calls for clear conditions and a high near 92°F, with southeast winds around 5 mph. By Wednesday, highs will push to 96°F, and by Thursday, the city could see 99°F—well above normal for early April. Residents are advised to stay hydrated, limit outdoor exposure during peak sun hours, and check cooling systems.
Evening conditions offer slight relief, with lows ranging from 59°F to 67°F through Thursday night. Winds will shift gradually, becoming westward in the afternoons and calming by night. Although skies remain mostly clear, UV indexes are expected to remain high throughout the week.
Looking ahead, Friday is forecast to reach 101°F, signaling a sharp transition into summer-like conditions. The weekend will remain dry and hot, with sunny skies continuing through Sunday and highs hovering around 98°F. Morning lows stay mild in the mid-60s.
Travelers along I-10 should be mindful of vehicle heat stress and monitor tire pressure. Outdoor workers and those without air conditioning should take precautionary measures, especially during midday hours.
This prolonged heat wave highlights the need for early spring preparedness across Maricopa County. No rain is expected in the five-day outlook, and fire weather risks may increase as temperatures climb.
