Saturday’s high temperature of 65° at O’Hare—13° above the normal high, teamed up with modest WSW winds and clear skies for about as nice a November day as possible in Chicago. By contrast, at this time in November, 1991, Chicago shivered through 4 consecutive days of record setting cold, peaking on Nov. 7, 1991 when the high topped at only 27° and the succeeding night dipped to 11°.
The brief cool-down over the next few days will not be close to that magnitude, but Sunday afternoon’s gusty WNW winds and falling temperatures bring the weather back to normal November levels. Temperatures rebound back toward 60° Wednesday, tapping Gulf moisture ahead of the strongest cold snap of the season. On Thursday, lingering rain turns to snow flurries as daytime temperatures fall through the 30s and overnight lows dip into the mid 20s, with only a slow moderation in days to follow.
