Arizona – Cold desert air settles into the Valley before sunrise, sharpening the chill across sidewalks and parking lots. Breath shows briefly in the dim light, palm fronds barely move, and the quiet calm feels more like winter than the Phoenix many expect.
According to the National Weather Service in Phoenix, early temperatures hover in the low 40s, with wind chills dipping into the upper 30s in some areas. Clear skies dominate, but a light east-northeast breeze adds a bite to the morning hours before easing later today.
In Phoenix, commuters heading out early may notice cooler-than-usual conditions along I-10, Loop 202, and surface streets. Roads remain dry, but the contrast between chilly mornings and warmer afternoons can catch drivers and outdoor workers off guard. A light jacket is a smart move before midmorning.
Sunshine quickly takes over as the day unfolds. Highs climb into the low 60s this afternoon, then jump sharply over the next several days. Tonight stays clear and cool, with lows near 41 degrees, keeping the frost conversation alive for outlying desert spots.
Sunday brings a noticeable shift. Afternoon temperatures reach near 70 under sunny skies, though breezes increase later in the day. Winds could gust near 25 mph, especially in open areas, before calming again Sunday night.
The warm-up accelerates early next week. Highs reach the low 70s Monday and Tuesday, then push into the mid-70s by midweek. Nights remain cool but less cold, staying mostly in the 40s. By late January, daylight stretches roughly 40 minutes longer than early month levels, making evenings feel brighter and more inviting.
No weather alerts are expected, but rapid temperature swings define this January pattern. Feeling the cold this morning or already enjoying the sun? Tell us how it feels where you are.
Five-Day Weather Outlook for Phoenix, Arizona
Saturday: Sunny and cool early. High near 63.
Sunday: Sunny and breezy. High near 70.
Monday: Sunny. High near 70.
Tuesday: Sunny and warmer. High near 71.
Wednesday: Sunny. High near 74.
