Historical weather data, all-time temperature records, and monthly climate averages for Catalina Foothills, AZ. Explore typical weather conditions by week for trip planning, and see how today compares to the historical record.
April 5th in Catalina Foothills is a pleasant shoulder-season day, with historical highs averaging 78° and lows around 50°. The date has seen a 33-degree swing in its history — from a chilly 38° low in 1958 to a scorching 91° high in 1959. Rain is essentially a non-factor, with just a 4% chance of precipitation.
Catalina Foothills plays in the extremes — the all-time high of 113° set in August 2025 puts it firmly in desert territory, while a January 1964 low of 20° proves winter can still bite. Even the precipitation records are dramatic: 6.6 inches of snow fell in a single November day in 1958, the same year the wettest day on record dropped 2.28 inches of rain in late July.
Catalina Foothills runs hot for most of the year, with highs climbing into the upper 90s from May through September and peaking around 101° in late June. If you want mild weather, January through March is your window, with highs in the low-to-mid 60s and 70s. The wettest stretch arrives in late July with monsoon season, averaging over half an inch per week.