There will be quite a change in the weather during the coming week over the Chicago metro area and the Midwest in general. The gorgeous weather of the past few days will continue through Tuesday. After a high of 79 for Chicago, today (Sunday) is a little cooler but still very pleasant. Mid afternoon highs are running in the mid to upper 60s. Both Monday and Tuesday will continue mild with highs near 70. The normal high is now down to 69 so we will be right on normal.
The changes to the weather begin Tuesday night into Wednesday. Chicago will be on the northwest edge of a broad rain area moving up from the Gulf coast early in the week. It does look like some rain will fall over the metro area Tuesday night in Wednesday, but probably not much. We sure need the rain as this month is again dry. Rainfall for the month will total only 1.76 inches. Normal is 3.12 so we will end 1.36 inches below normal. The drought continues over the entire area.
Thursday will still be mild, again near 70. Showers and storms will move through late in the day or at night ahead of a very strong cold front. The graphic shows the front east of Chicago Friday morning with a cold northwest flow coming down from Canada. This forecast is from the GFS model. Highs for Friday through next weekend will only be in the low to mid 50s, or roughly 20-25 degrees colder than this weekend. Overnight lows will drop into the 30s again to produce frost on the pumpkin. The cool stretch looks like it will continue into the following week.
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