A few flurries or perhaps even light snow showers are possible Friday
evening and night over northern Illinois with the passage of low
pressure. Anything that does come down isn't looking to be too
significant and would likely only be a dusting, up to half an inch.
Sunshine will briefly return for Saturday ahead of another low pressure
system, expected to move into the Midwest and Great Lakes Sunday and
Sunday night.
Increasing moisture with a warm front Saturday night will allow cloud
cover to thicken up through the night. Snow showers could start before
sunrise Sunday, lasting into the afternoon as low pressure moves from
Iowa into southern Wisconsin. This system isn't going to be a strong
one, but could produce a few inches of slushy snow by Sunday evening.
The highest snow accumulations will occur just to the north of the low,
which right now looks to be from Minnesota to Wisconsin, but slushy
accumulations of at least a few inches are possible locally. However,
if the low shifts a little further south that could place the higher
snow totals closer to the Stateline.
Temperatures will be in the 30s Sunday so the snow that comes down will
have quite a bit of moisture with it, making it a heavier snow. A few
light rain showers may mix in towards the end, but most of the
precipitation will fall as snow.
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