Gusty southwest winds Sunday, will deliver a spike in temperature to the region. For the third consecutive day, temps are forecast to reach or exceed 40 degrees. Readings in the low and mid 40s will be the mildest since December 28th, when the mercury climbed to 50 degrees.
A downturn in temps is expected during the upcoming week. Current forecasts suggest low pressure will generally track north of Chicago, keeping most snowfall confined to the upper Midwest. The exception will be Monday night and Tuesday morning, when a weak disturbance may bring an inch or two of snow to northern Illinois. A more significant push of polar air is expected later in the week, sending readings into the teens and single digits by Friday.