Environment ❯ Climate ❯ Weather Patterns ❯ Seasonal Changes

Humidity Levels

SPC Puts Chicago in Enhanced Risk as Summerlike Heat Fuels Midweek Severe Storms

Forecasters highlight a Tuesday night severe window driven by a humid air mass interacting with a stalled front.

Warm Weekend Gives Way to Fast-Moving Cold Front, Gusty Cooldown Sunday

Cold Front Clears the East as Gusty Winds, Cooldown and Advisories Follow

Soaking Rains and Isolated Severe Threat as Cold Front Presses East, Drier Weekend Ahead

Dry, Warm Weekend Gives Way to a Wetter Start to the Week

Extreme Heat Grips the West as Warnings Span 80 Million and Wildfire Threat Grows

UK Eyes Late‑August Weather Shift Linked to Hurricane Erin

Scotland and Northern Ireland Brace for Thunderstorms as England Stays in Heatwave; India and US West Face Flood Alerts

Cold Front Triggers Thunderstorms in Michigan and Ground Stops at Chicago Airports

UK Braces for Potential Fourth Mid-August Heatwave With 37 °C Peaks

Europe Swelters as Early-Summer Heatwave Triggers Wildfires, Closures and Deaths