TUCSON, Ariz. (13 News) – Daily records are likely through the weekend, with triple digits within reach as a ridge of high pressure builds over the region. If Tucson hits 100° Saturday and/or Sunday, it will be the latest we’ve ever done so in a calendar year (current record is October 20th, set just last year). Overnight lows will continue to cool off nicely, into the 50s and 60s as conditions remain dry. A pattern shift will lead to a big cool-down next week, starting on Tuesday!