Phoenix residents are feeling the heat like never before. A severe heatwave has gripped the city, sending February temperatures soaring to historic levels, reaching highs typically reserved for summer. On Friday, February 21, 2025, Phoenix saw a temperature of 78°F (26°C), which is well above average for this time of year, and it’s expected to keep rising.
This unseasonably high heat is part of a larger weather pattern affecting not only Phoenix but much of the southwestern U.S. The heatwave, which started earlier in the week, shows no signs of easing anytime soon. And while residents are used to hot summers, this early heat has raised eyebrows, setting multiple temperature records in the process.
How Hot Will It Get in Phoenix?
- Friday, February 21: Partly sunny skies and high temperatures of 78°F (26°C). Expect lows around 49°F (9°C).
- Saturday, February 22: A bit warmer with full sunshine, reaching 79°F (26°C) during the day and cooling to 50°F (10°C) at night.
- Sunday, February 23: Temperatures will climb to 84°F (29°C), with plenty of sunshine and lows around 53°F (12°C).
- Monday, February 24: The heat intensifies, with highs nearing 88°F (31°C), approaching the record of 33°F set in 1904. Lows will be around 54°F (12°C).
- Tuesday, February 25: Very warm again with highs of 89°F (32°C), breaking a record that dates back to 1921. Expect lows near 60°F (16°C) at night.
- Wednesday, February 26: More of the same with temperatures hitting 89°F (32°C) and lows at 63°F (17°C). The heat continues to defy the usual expectations for February in Phoenix.
Why Is Phoenix So Hot Right Now?
Phoenix is no stranger to high temperatures, but this February heatwave is an anomaly. The cause of the extreme warmth is a large dome of high pressure that has settled over the southwestern U.S., trapping hot air in the region. As a result, Phoenix has seen temperatures that are more typical of late spring or early summer.
Normally, temperatures in Phoenix hover around 70°F (21°C) during February, making the current highs of 84°F (29°C) seem almost out of place. In fact, **Phoenix is on track to break the February temperature record, which is just a few degrees shy of the city’s all-time high.
The heat is not just isolated to Phoenix. Other areas across the Southwest, such as California, Nevada, and Arizona, are also experiencing unseasonably high temperatures.
How to Stay Safe During Phoenix’s Extreme Heatwave
- Stay Hydrated – With temperatures approaching the high 80s even in the winter, it’s crucial to drink plenty of water throughout the day.
- Avoid the Heat – Limit outdoor activities during the peak heat hours between 11 AM and 4 PM. If you must go outside, wear light, breathable clothing and a hat.
- Cool Down Indoors – If you don’t have air conditioning, consider spending time in public places like shopping malls, libraries, or community centers to escape the heat.
- Protect Pets – Keep pets inside or ensure they have access to cool areas and plenty of water. Never leave animals in hot cars.
- Be Aware of Heat-Related Illnesses – Watch for symptoms of heat exhaustion, which include dizziness, nausea, and heavy sweating. If you or someone you know shows these signs, get to a cooler place and hydrate immediately.
When Will the Heatwave End?
The good news is that the extreme heat will likely subside by the middle of the week. By next weekend, temperatures are expected to return to more typical February levels, with highs in the 70s and lows in the 50s. However, another heat surge could follow, as the weather patterns in the Southwest can be unpredictable.
In the meantime, Phoenix residents should prepare for more hot days ahead, as this historic heatwave continues to break records. Keep your fans running, stay hydrated, and avoid the midday sun while this unseasonal warmth lasts.
