Gusty winds swirl in front of the University of Arizona Main Library as freshman Kelcey Cavarra, a business major from Colorado, waits for a friend before heading off to class. Winds as high as 25 mph buffeted Tucson on Wednesday, according to the National Weather Service. Once the winds die down, showers and lower temperatures are expected as early as Friday night. The weekend is expected to be a wet one, with a storm system bringing an increased chance of rain. The National Weather Service said high temperatures will be in the upper 50s to low 60s by Saturday.