Clouds, northeast winds make for a cool autumn weekend

Lake Michigan water temperatures, at record warm levels just a few months ago, have cooled following two successive months of chilly weather. Water temps off Chicago now hover in the mid 40s. Northeast winds are forecast to persist over the weekend, but will be no where near the storm-force speeds experienced earlier this week. This wind flow will provide the Chicago area with several more days of below normal temps. Clouds produced over the lake will also move inland, limiting sunshine and perhaps bringing isolated showers. The cool air is expected to remain in place through midweek as another storm system intensifies along the East coast. This system is set to progress to the Canadian maritime provinces by Friday, allowing for a significant change in our upper air pattern. Temps by next weekend are forecast to rise well above normal.

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