Patchy fog likely tonight as isolated showers/storms come to an end

 

A mix of sun and clouds Thursday afternoon allowed temperatures to warm into the low to mid 80s with a heat index reaching the low 90s. The majority of the afternoon has been dry, outside of a few showers that moved across northern Illinois and southern Wisconsin earlier in the day.

We will see a gradual increase in showers and isolated thunderstorms through the evening as the combination of a lake breeze from Lake Michigan and cold front move across southern Wisconsin and northern Illinois. The biggest impacts from any shower/storm that develops will be periods of heavy rainfall. There may also be some gustier winds through sunset. The chance for rain will last through Midnight, perhaps even as late as 3am/4am Friday.

As the showers come to an end the light northeast wind and increased low level moisture could lead to some areas of patchy fog through Friday morning. While I am not anticipating anything too widespread or dense, locally dense fog will be possible for some during the morning commute.

Similar to Thursday, temperatures Friday will warm into the low to mid 80s. We may see an isolated shower/storm, or two, Friday afternoon but the majority of the area will remain mostly dry. Temperatures through the weekend will warm into the mid and upper 80s before reaching the 90s next week.