Illinois Weather

Forget a slow creep into winter. The Farmers Almanac is calling for sudden cold snaps and fast-moving storms across the Great Lakes and Upper Midwest.

Northern Illinois could face dangerous storms tonight, including the potential for damaging straight-line winds. Here's what a derecho is and what Rockford-area residents should do to prepare.

The first long-range fall forecasts are in for Northern Illinois — and a few sources are already agreeing on what kind of autumn we might be in for.

Four tornadoes touched down across the Chicago suburbs Monday — and that's just the latest chapter in what's already become the most active tornado year in Illinois history.

Three times the normal number of tornadoes in under seven months. That's not a trend. That's something else entirely.

That hazy sky over Rockford isn't going anywhere just yet. Light winds kept the smoke closer to the ground overnight, and air quality is still at unhealthy levels.

That campfire smell in the air this week isn't coming from your neighbor's backyard — it's traveled hundreds of miles from Canada, and today might be the worst of it.

The Old Farmer's Almanac just released its 2026 fall outlook, and Northern Illinois could be in for cooler temperatures and classic fall weather.

Most summers in Rockford bring around 15 days at 90 degrees or above. But there was a stretch back in 1916 where that kind of heat just never let up — for three straight weeks.

Northern Illinois is baking under dangerous heat. Here's how to stay cool, lower your AC bill, and find relief at local cooling centers and splash pads.