ILLINOIS — A classic February “roller coaster” pattern is lining up this week, starting with sunshine and temperatures in the 50s Monday, surging into near-70 warmth Tuesday and Wednesday, and then turning unsettled again as another system brings rain—with a track-dependent chance of a wintry mix heading into the weekend.
Monday Starts Mild and Bright
The week begins on a calmer note. The outlook shows sunshine with temperatures climbing into the 50s Monday—an early taste of springlike comfort after recent winter chill.
For Naperville and the western suburbs, that typically means a decent outdoor day, but it also sets the stage for what comes next: a stronger push of warm air arriving quickly behind it.
Near-70 Warmth Builds Tuesday and Wednesday
The most notable part of this forecast is the midweek jump. Tuesday and Wednesday are projected to surge to near 70 degrees, a level of warmth that can feel dramatic for early February in Illinois.
That kind of spike usually comes with a few practical impacts:…