For many, this sudden burst of warmth might feel like a welcome break from cooler winter days, but health officials are already urging residents to take precautions. With little to no cloud cover and desert sun beating down, even February heat can quickly become dangerous if you’re not prepared.
How Hot Will It Get? Here’s the Breakdown
If you were hoping for a few more weeks of cool, crisp mornings, think again. This week, Phoenix will experience some of the warmest February temperatures on record.
- Wednesday, February 19: A high of 79°F (26°C), with clear skies and dry desert air.
- Thursday, February 20: Things start to heat up, with a high of 80°F (27°C).
- Friday, February 21: Another sun-soaked day, reaching 78°F (26°C).
- Saturday, February 22: No sign of cooling down! Highs hit 81°F (27°C).
- Sunday, February 23: A major jump in temperatures, climbing to 84°F (29°C).
- Monday, February 24: The peak of the heat wave—88°F (31°C), making it feel more like early summer than late winter.
Why Is Phoenix Heating Up So Fast?
If you’re wondering why February suddenly feels like June, you’re not alone. This heat wave is the result of a powerful high-pressure system parked over the Southwest, trapping warm air and preventing any cooling breezes.
Normally, Phoenix’s February highs sit around 70°F (21°C), but this week’s forecast is blowing past that average. While it’s not quite record-breaking, it’s definitely well above normal and serves as a reminder that spring and summer aren’t far away.

How This Affects Your Day-to-Day Life
1. Outdoor Activities Might Be Tougher Than You Expect
With temperatures in the upper 80s, hiking, biking, or spending long hours outside could feel more exhausting than usual.
- Plan outdoor workouts early in the morning or later in the evening.
- Drink plenty of water—don’t wait until you’re thirsty!
- Wear sunscreen and lightweight, breathable clothing to stay cool.
2. Fire Danger is Rising
Warm, dry air combined with strong sun exposure creates the perfect conditions for wildfires.
- Avoid outdoor burning or tossing cigarette butts in dry areas.
- Follow fire safety restrictions in parks and nature preserves.
3. Heat-Related Illnesses Can Happen—Even in February
People often underestimate how quickly the heat can take a toll.
- Watch out for heat exhaustion: Signs include dizziness, excessive sweating, and nausea.
- If you feel weak or lightheaded, find shade, drink water, and rest.
How Long Will This Heat Last?
The worst of the heat wave is expected to peak on Monday, February 24, with highs nearing 90°F.
After that, things should start cooling down slightly, with temperatures returning to the upper 70s by the middle of next week.
Final Thoughts: Enjoy It, But Stay Safe
While much of the country is shoveling snow and battling icy roads, Phoenix is about to feel like mid-summer. This is a great time to enjoy patio dining, take a trip to the pool, or soak up some sunshine—but don’t let the heat catch you off guard.