Brrr, January 2025 is bringing some serious chill! 🥶 Dive into the science of the polar vortex and learn what’s behind this unexpected cold snap. Let’s unravel the mystery together! #PolarVortex #Win ...

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

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

April 5, 2025 - By Laura Ciasto and Amy Butler - After spending much of the season with super strong wind speeds, the polar ...

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

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

Sustained warm weather has been elusive this spring. When will we feel a change? Lee Goldberg explain in the latest edition of "Weather or Not." ...

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy ...

Beijing residents were told to stay home, tourist sites were closed and thousands of flights were canceled across the country ...

A cool wind returns Monday with showers later. Steadier rain arrives Thursday, with a shot of potentially heavy rain late Easter Sunday. The latter half of April looks wetter than normal. This might ...

Don't put away those winter coats just yet. An April cold snap is forecast for much of the eastern half of the U.S. early next week, forecasters said, with freezes likely across portions of the ...