Weather
Green Bay, WI Fog Alert Oct. 20: Morning Fog, Then 66° Highs
Green Bay, WI – Drivers across portions of northeast Wisconsin could encounter fog early Tuesday, October 20, before improving conditions bring a dry and seasonably warm afternoon. Temperatures are ex
By Jenna Hartley · 2026-10-20T08:42:42.485Z
Green Bay, WI – Drivers across portions of northeast Wisconsin could encounter fog early Tuesday, October 20, before improving conditions bring a dry and seasonably warm afternoon. Temperatures are expected to reach the lower to middle 60s, with even warmer conditions possible Wednesday.
According to the National Weather Service in Green Bay, areas of fog developed early Tuesday morning across portions of east central and far northeastern Wisconsin, potentially affecting visibility during the morning commute.
Forecasters expect the fog to clear by midmorning , allowing dry and warmer conditions to develop throughout the remainder of Tuesday.
Afternoon temperatures are forecast to range from 60 to 66 degrees across the region, with partly sunny skies expected after the fog dissipates.
Drivers traveling through fog prone locations should remain alert for changing visibility, particularly along rural roads, highways and low lying areas.
Wednesday, October 21, will bring another pleasant fall day , with sunshine and afternoon highs ranging from 63 to 70 degrees.
Morning temperatures will remain considerably cooler, with lows between 38 and 43 degrees before daytime warming begins.
Thursday, October 22, will continue the dry pattern, with sunny skies and afternoon temperatures ranging from 59 to 69 degrees.
Overnight and early morning temperatures Thursday will generally range from 38 to 48 degrees across the forecast area.
Friday, October 23, will remain mostly dry and seasonably warm , with partly sunny conditions and afternoon highs between 57 and 66 degrees.
Morning temperatures Friday could range from 37 to 58 degrees, reflecting considerable differences across northeastern Wisconsin.
The extended stretch of dry weather should provide favorable conditions for outdoor recreation, fall cleanup and regional travel.
Residents in Green Bay, Brown County and surrounding communities should prepare for cooler mornings despite the relatively mild afternoons.