AZ Monsoon: Surge In Moisture Expected In Tucson Area Next Week

TUCSON, AZ — A surge of tropical moisture is expected to reach Tucson on Wednesday and intensify early next week, the National Weather Service said.

The first wave of storm development is expected west of Tucson Wednesday afternoon, before shifting east of Tucson during the late afternoon and evening.

From there, conditions are expected to dry out from Thursday through Sunday, with high temperatures of 100, 103, 106 and 107, the service said.

The biggest change in the forecast for the Old Pueblo begins on Sunday night, when the region has a 30 percent chance of rain.

Monday through Tuesday night will see a 50 percent or greater chance of rain in the region, representing a favorable monsoon pattern taking hold, the service said.

As of now, the service's outlook for Monday afternoon shows a 45 percent chance of rain in Tucson, with more favorable chances on top of Mount Lemmon (46 percent) and east toward the New Mexico border (49-65 percent).

Tucson averages more than 2 inches of rain per month in July and August, before tapering off to just over an inch per month in September and October.

RELATED: AZ Monsoon Outlook: Hot Temperatures, Uncertain Rainfall Expected

RELATED: Arizona Could Get Wetter Than Usual Monsoon In 2021: NWS

Any rainfall will be appreciated throughout the region, after the 2020 monsoon ranked as the second-driest in history, with 1.62 inches of rain falling between June 15 and the end of September, the lowest total since 1924.