October will close mild after a long cool spell
Fast moving disturbance passes north of the area bringing a threat of showers.
Occasional light rain, likely ongoing at daybreak, continues much of the morning. Steadier, more concentrated rain favors areas fromthe city, north.
Continued chilly. Temps slowly rise to the 50s by the midday period.
Trending windy and cooler in the afternoon. Peeks of sun emerges by late in the day. High temps range low 50s N, to low 60s S-Wsections.
SWwinds early, shift NW by noon, increase to 20-30 mph with higher gusts.
Since Oct. 10, much of the Great Lakes and Midwest have felt the effect of persistently cool air. Officially, at O’Hare International Airport, the average temperature over the past threeweeks has run 6.5 degrees belownormal. Only two days posted a slight temperature surplus.
During this period, there has been only one day that eclipsed 60 degrees. Currently, the fewest 60-degree days during the last three weeks of October stands at two, set in1925.
Strong south-to-southwest winds on Tuesday will drawmild air across the Chicago area. It’s highly likely that readings will rise into the 60s. The mild air will be short-lived. Rain is expected to accompany a cold front across the metro area Tuesday evening, heralding a new push of cool air. Daytime readings onHalloween are expected to settle back into the 50s.