Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

The Old Farmers Almanac has predicted the last frost dates across the U.S. for 2025 -- and some in the Chicago area might be ...

When the polar vortex begins to wobble and allows arctic air to spill south into northern Illinois in January, we usually end ...

Arctic sea ice reached a record-low winter maximum on March 22, 2025, with just 5.53 million square miles of coverage—well ...

Today will be the brunt of the cold temperatures across the region, with highs barely hitting 40° and wind chills below ...

Overnight low temperatures in the upper 50s are normal for February, not April, but we may see them this weekend in South ...

Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor plans.

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March.