Arizona Watcher
A shift in the weather pattern is bringing increased moisture into Southern Arizona, driving daytime temperatures several degrees below normal and ending the recent stretch of widespread triple‑digit heat.
Showers and thunderstorms are forecast from Tucson west into the lower desert, with more widespread storm activity expected south and east of the city; regional maps show a marginal to slight flood risk across much of Southern Arizona.
Cooler mornings are expected: Tucson is forecast to begin Monday near 75°F while higher terrain will be noticeably cooler, with many mountain communities dipping into the 60s.
By Monday afternoon many communities should remain below triple digits — Tucson near 96°F and Sierra Vista around 85°F — though western desert pockets like Ajo and Organ Pipe may approach 100°F.
The National Weather Service issued a Flash Flood Watch from Monday afternoon through evening for Cochise, Graham, Greenlee and Santa Cruz counties, warning storms could produce 1–3 inches of rain on saturated soils.
Flash Flood Warnings were issued Sunday evening for parts of Cochise County after Doppler and gauges recorded 1.5–2.0 inches near Willcox; warnings noted possible flooding on I‑10, Route 191 and other roadways and urged motorists to avoid flooded roads.
A surge of moisture moving into Southern Arizona is bringing an uptick in showers and thunderstorms through the first half of the week, while daytime temperatures settle several degrees below seasonal averages. Tucson and nearby communities can expect cooler mornings and highs…