 Big Z Weather Service of Alton Auto Butler. Revitalize your ride with the area's most trusted full-service car wash and express detail. Alton Auto Butler, where every car gets the royal treatment. Sunny today, high upper 80s. Northeast wind, 5 to 10 miles per hour. Partly cloudy tonight, low in the upper 60s. On Friday, mostly sunny in the morning, increasing clouds by the afternoon. Slight chance of showers and storms. Friday's high, mid-80s.