Mother's Day to be a bit on the cool side

Mother's Day promises to be a cool one this year with highs struggling to reach the lower
60s. The day will be dry--though a few light showers or sprinkles may develop in the
afternoon--but it should be far better than last year's chilly washout that featured highs
in the 50s and 1 to 2 inches of rain. Though recent Mother's Days have been cool here, the
mercury reached a very warm 88 degrees in 2004 and 85 degrees in 2005. Since the first
proclaimed Mother's Day in 1914, temperatures here have climbed as high as 89 degrees
in 1956 and dropped as low as 29 in 1983. Sunshine returns Monday as temperatures
begin a quick rebound that will boost readings into the lower 80s by Wednesday, courtesy
of increasing southwest winds. The warm-up will be accompanied by a noticeable
increase in moisture, which will lead to the development of clusters of potentially active
thunderstorms that could reach Chicago by Wednesday. Cooler weather will follow in the
storm’s wake Thursday, but another surge of warmth is due to arrive by next weekend.