ROCKFORD (WREX) — The start of a new work week brought in a decent swatch of snow to the Stateline, but quieter weather is ahead. Despite the return of sunshine, cold weather is about to settle in.
A sprawling area of high pressure is building across southern Canada and that ridge is heading into the Central U.S. As it spreads into the Midwest, the heart of the Arctic chill returns. That cold blast moves in for midweek, but through Tuesday, temperatures remain near average.
Clouds are around Tuesday morning, but as northwesterly winds drag in cooler and drier air, we'll see a return to sunshine. Those winds are making for a bit of a wind chill out there and continue to do so through the day. Highs climb into the middle 30s, which is near average, but wind chills are likely to remain in the middle teens to lower 20s.
Since the cold frontal passage early Tuesday morning, wind gusts have topped out at around 30 miles per hour. Expect those blustery winds to continue through the first half of the day before somewhat subsiding Tuesday evening. As skies continue to clear, low temperatures by Wednesday morning are going to dip briefly into the single digits.
Winter's chill soon to return:
The single digit start Wednesday is a harbinger of things to come for the afternoon: teeth-chattering chill! Highs Wednesday and Thursday could linger into the upper teens to lower 20s for much of the Stateline, despite wall-to-wall sunshine. The building high pressure over Canada Tuesday slips into the Central U.S. by mid-to-late week, keeping weather benign locally.
As our Arctic high slowly pushes east, it takes the cold along with it. Temperatures Friday warm into the lower 30s, seasonably cooler-than-average. As winds continue to shift to a more southwesterly direction, a big swing in temperatures take place. Highs Saturday into Sunday are likely to be in the lower to middle 40s.