Smoke lingers over mountains.

KSTU: Utah Doctor Issues Warning Amid Poor Air Quality

Poor air quality can be especially dangerous for people with some pre-existing conditions.

Latest in Weather

0:27Person watches a plume of smoke from the Bootleg Fire near Bly, Oregon.
Nathan Howard / AP

Thousands Of Homes, Structures Threatened By Western U.S. Wildfires

1:41A dried up river.
KSTU

KSTU: Utah Farmers Struggle To Stay Afloat Amid Drought

2:29Smoke clouds a mountain.
NPS

KGTV: Satellites Help Scientists Predict Harmful Effects Of Wildfires

1:16Members of the Romero family, visiting from Houston, cool off at Castaic Lake as temperatures rise in Castaic, Calif.
Marcio Jose Sanchez / AP

California Prepares For Another Hot Weekend

0:39A jogger makes his way along Bayshore Blvd.
John Raoux / AP

Tropical Storm Elsa Heads Toward Northeast

0:33Smoke rises from the Munson Creek Fire near Fairbanks, Alaska.
Alaska State Troopers via AP

Drought Conditions Fuel Western Wildfires, Prompt Evacuations

1:08Cyclist taking a break under the bright sun.
Tommy Martino / AP

Heat Wave Linked To At Least 116 Deaths In Oregon

2:24Wildfire
KNXV

KNXV: Will Wildfires Change Arizona's Desert Ecosystem?

0:27Satellite image of Tropical Storm Elsa over the state of Florida.
NOAA via AP

Tropical Storm Elsa Makes Landfall Along Florida Gulf Coast

2:42Fire
Scripps

Firefighter Shortage Raises Concerns Amid Intensifying Wildfires

1:06A pedestrian holds a bottle of cold water at a Salvation Army hydration station
Ross D. Franklin / AP

Almost 100 Dead in Oregon as Heatwave Continues

1:32A satellite view of Tropical Storm Elsa
National Oceanic and Atmospheric Administration

Tropical Storm Elsa Headed To Landfall On Central Cuba Coast

1:26Man uses technology to survey land.
UC San Diego

KGTV: California Experts Deploy New Tech To Fight Wildfires

View of Hurricane Elsa in the Atlantic Ocean.
NOAA

Elsa Strengthens Into First Atlantic Hurricane Of The Season

0:34A family cools off in the Bitterroot River as temperatures reached over 100 degrees in Missoula, Montana.
Tommy Martino / AP

Rolling Blackouts In Northwest Due To Heat Wave

1:59Volunteers fill sandbags
Team Rubicon

KNXV: Volunteers Help Wildfire Victims Prepare For Flash Floods

0:33A display at an Olympia Federal Savings branch shows a temperature of 107 degrees Fahrenheit in Olympia, Wash.
Ted S. Warren / AP

Slight Cooldown After Days Of Historic Heat

2:18Trash sits on the curb.
WXYZ

WXYZ: Michiganders Continue Cleanup Efforts After Weekend Flooding

1:15People flock to Bloedel Donovan park during an uncharacteristic Pacific Northwest heat wave Sunday, June 26, 2021.
Lisa Baumann / AP

Pacific Northwest Heat Wave Breaks Records

2:08Couple gets married
KNXV

KNXV: Arizona Couple Changes Wedding Plans After Wildfire Breaks Out

2:24Man holds up a house rendering.
KMGH

KMGH: Colorado Wildfire Victims Are Determined To Rebuild

1:43Wildfire burns in the brush.
KNXV

KNXV: Arizona Officials Warn Against Fireworks As Wildfires Burn

0:44A pedestrian takes a bottle of water at a Salvation Army hydration station during a heatwave in Phoenix, Arizona
Ross D. Franklin / AP

Heat Wave Continues To Scorch Western U.S.

1:50Hurricane hits Florida
WFTS

WFTS: Survey Shows Many Floridians Aren't Prepared For A Hurricane

A resident cleans up after a tornado touched down in suburban Chicago Monday, June 21, 2021.
Ashlee Rezin Garcia/Chicago Sun-Times via AP

Tornado Sweeps Through Suburban Chicago

0:46debris covering the street in East Brewton, Ala.
Alicia Jossey / AP

13 Dead In Alabama From Claudette

0:44Danny Gonzales walks in his flooded house as water recedes after Tropical Storm Claudette passed through Slidell, La.
Gerald Herbert / AP

Central Gulf Coast Residents Drying Out After Tropical Storm Claudette

1:31Sign warns hikers.
KNXV

KNXV: Phoenix Fire Department Warns Against Hiking In The Heat

0:40Beachgoers crowd in the heat at Santa Monica Beach on Wednesday, June 16, 2021, in Santa Monica, Calif.
Ringo H.W. Chiu / AP

Western U.S. Tries To Escape Sweltering Heat

0:33Electrical grid transmission towers in Pasadena, California.
John Antczak / AP

Californians Urged To Conserve Energy Amid Intense Heat Wave