An Arctic air mass is sinking into our region behind a strong cold front which is sweeping through the Great Lakes and mid Mississippi Valley. A deep upper level trough is pivoting deep into the center of the nation allowing a massive shift in temperatures. We were at near record warmth around 50 degrees, but now our readings are falling fast and we'll be hard pressed to get out of the low to middle 20s for Sunday. That front and another lobe of low pressure to our South will combine to give us a bit of light snow overnight, though not much accumulation is expected North of Milwaukee with up to 2 inches closer to the Illinois border. Clouds will decrease for the tail end of the weekend and the beginning of next work week leading to much brighter skies, but the mercury will remain at or below the seasonal average high of 29 degrees.
Have a great Sunday!