A Blustery Start to the Week

Low pressure is over north central Missouri with a warm from stretching eastward across central Illinois. There is a southerly wind across Illinois causing widespread drizzle and fog. The low will move toward the northeast overnight, and be positioned over eastern Iowa at midnight, and near Milwaukee by 6 am on Monday. Rain showers will spread across the area from southwest to northeast. Because of the warm air associated with the system moving across cold snow covered groung,  drizzle will continue, and fog will thicken becoming locally dense. Temperatures will hold in the middle 30's overnight. Colder air will begin moving into the Stateline around daybreak, the fog will dissipate, and rain showers will mix with snow. Temperatures will drop from the middle 30's early to near freezing at noon changing the mix to all snow.  The winds will pick up from the northwest to 20-30 mph by noon with gusts to 35 mph.  Minor accumulations of around 1" are expected during the afternoon, and there will be blowing snow with strong winds continuing into Monday evening.  There could still be a few flurries in the evening, winds will slowly subside overnight, and it will be colder with temperatures dropping into the middle teens by daybreak on Tuesday.  Tuesday will be mostly sunny with a high in the middle 20's. High pressure will dominate the area on Wednesday, and temperatures will moderate back into the low 30's by afternoon. A Pacific system will move through the area early Thursday. The air behind it is actually warmer, so the high will be in the middle 30's under mostly sunny skies. That Pacific high will be over Ohio by early Friday, and another Pacific front will be approaching by late in the day, so there will be a slight chance of rain or snow with that system in the late afternoon. Even though the next high pressure is Pacific in origin, it will pull down some colder Canadian air on it's nose, so temperatures will be a little colder on Saturday and Sunday.