It won't be as hot and humid as last year's heat-shortened race, where readings soared
to the middle 80s before noon. But runners competing in Sunday's 31st Chicago
Marathon will still have to contend with late-morning temperatures in the 70s as warm
weather dominates race day for the second straight year. Highs on Sunday should top
out in the lower 80s, compared to last year's record-breaking 87-degree high.
After failing to reach 70 degrees in October's opening nine days for the first time since
1977, the high reached 72 degrees on Friday and 79 Saturday, setting the stage for at
least four straight 70-degree-plus days before the next cooldown arrives Tuesday.
High temperatures should then slowly fall through the 60s the rest of the week as more
seasonable weather returns.
WINTER ARRIVES EARLY IN THE WEST
An early-season storm is bringing the first snows of the season to the northern
portions of the Rockies and High Plains. More than 2 feet of snow has buried portions
of Wyoming and Montana with another foot expected in many areas before the storm
ends. Boise, Idaho received 1.7 inches Friday, its earliest measurable snow since 1898,
when records began there.
--By Steve Kahn, WGN Weather Center Meteorologist
