For the second straight year the Chicago Marathon was run in unseasonably warm
weather. Sunday's high of 84 degrees at O'Hare Airport tied the day's record high set in
1960, while Midway Airport's 86 equaled a previous 1930 benchmark. In 2007, the race
held on Oct. 7 was canceled after 3.5 hours when the mercury soared to a
record-breaking 87 degrees. The city had not experienced temperatures as high as
Sunday's in more than five weeks since a steamy 94 degrees on Sept. 2.
One more day of warmth is expected Monday, but more cloudiness should temper the
heat, holding readings closer to 80 degrees. More seasonable conditions will return for
the rest of the week as cooler weather moves in following the passage of a cold front
early Tuesday.
IN ATLANTIC, IT'S NANA -- THEN GOODBYE
Tropical Storm Nana, the 14th named storm of the season formed in the open Atlantic
Sunday afternoon about 900 miles west of the Cape Verde Islands. However, Nana is
expected to meet a quick demise as the storm encounters strong winds aloft. In the
Caribbean, forecasters are watching another system south of Puerto Rico that may
strengthen into Tropical Storm Omar.
--By Steve Kahn, WGN Weather Center Meteorologist
