Brr! Freeze Warning Issued in Advance of Marathon

By BJ LUTZ
Updated 9:00 AM CST, Sat, Oct 10, 2009

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Chicago woke up Saturday to clear skies, but temperatures will likely take a dive later in the day.

An overnight frost advisory expired at 9 a.m., but now we can look forward to a freeze warning beginning at 11 p.m. until 9 a.m. Sunday.  That means thousands of runners are keeping their eyes on the forecast heading into the big Bank of America Chicago Marathon.

At the start of the race, which begins at 7:30 a.m. Sunday, winds will likely be out of the west at about 10 MPH with temps near in the 30s.

Lake Michigan, with its water temperatures still in the 60s, will offer some respite, and sunshine should increase the air temperature into the 50s by midday Sunday.

Racers Toss Clothes on Course

Racers Toss Clothes on Course
WATCH

Racers Toss Clothes on Course

Meet Sunday's Elite Runners

Meet Sunday's Elite Runners
WATCH

Meet Sunday's Elite Runners

NBCChicago.com/weather

First Published: Oct 9, 2009 6:43 PM CST

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