National Weather Service

Summer school on Monday has been canceled for students at Joliet Public Schools District 86 because of “dangerous weather forecast of high heat and humidity,” school officials said.

The National Weather Service has issued a heat advisory for the region, warning of "oppressively hot and humid" weather until early next week.

Multiple places in DeKalb, Sycamore and throughout the county are designated free cooling centers for anyone needing an escape from the heat. Here's where to go if you need to cool off.

Forecasters warn that peak heat indices could climb above 100 degrees for several days

Several Illinois counties, including Will, Grundy and Kankakee, are under a tornado watch until 7 p.m. Wednesday.

Northern Illinois residents should prepare for severe storms today and dangerous heat beginning this weekend, according to the National Weather Service

A two-day stretch of severe weather is headed to northern Illinois, with storms expected to impact the region Tuesday afternoon before a more significant threat arrives on Wednesday

Northern Illinois could see strong to severe thunderstorms late Tuesday and Wednesday, according to the National Weather Service

Scattered thunderstorms Monday in northern Illinois could bring gusty winds and hail

Combined rain and snowfall this spring was well below normal across northern Illinois, according to the National Weather Service

Smoke from Canadian wildfires could filter the sun a bit this weekend, according to the National Weather Service

Prior to Friday, the last time a significant dust storm impacted Chicago was during the Dust Bowl on May 10, 1934, according to the National Weather Service

Illinois officials are urging people not to travel amid dust storm warnings across parts of the state, including much of the Chicago area.

More than 40,000 customers were without power across much of northern Illinois Friday morning following Thursday night's severe weather.

Strong winds, dry conditions and warm temperatures are expected through Friday, leading to warnings about potential fire spreads.

The National Weather Service is monitoring the potential for severe weather across northern Illinois Thursday that could bring with it destructive hail, damaging winds and tornadoes.

Strong southerly winds up to 45 mph are expected this afternoon through the evening, capable of downing tree limbs

Scattered thunderstorms forecasted for Friday evening could bring large hail, damaging winds and perhaps a tornado, the National Weather Service warned.

A decade after the strongest tornado to come through DeKalb County in recorded history decimated Fairdale, the scars left by the storm still are evident across the small but persisting town.

More severe weather moving in overnight Tuesday, lasting through Wednesday, including high winds, chance of hail.

Meteorologists from the National Weather Service station in Romeoville joined with Will County emergency responders in Plainfield at a workshop to discuss advances in forecasting and disaster preparedness on Saturday, March, 22, 2025.

March is Severe Weather Preparedness Month. The National Weather Service is looking for people interested in weather who are willing to volunteer for their community as trained storm spotters.

A severe weather spotter training presentation will begin at 6:30 p.m. March 19 to teach Grundy County volunteers how to help warn the community of dangerous storms.

Northern Illinois could see more snow Friday night and throughout the day Saturday, a couple days after a snowstorm forced school closures and other cancellations.

A quick burst of snow is expected to impact the afternoon commute in parts of northern Illinois on Friday

Snow today, freezing drizzle along and south of Interstate 80, and more snow and colder temperatures in the forecast for Friday and Saturday in northern Illinois

Snow today, freezing drizzle along and south of Interstate 80, and more snow and colder temperatures in the forecast for Friday and Saturday in northern Illinois

Parts of northern Illinois could see 6 or more inches of snow Wednesday, the National Weather Service advised Monday as it issued a winter storm watch for areas across central, north-central and northeast Illinois, as well as parts of northwest Indiana.

Parts of northern Illinois could see 6 or more inches of snow Wednesday, the National Weather Service advised Monday as it issued a winter storm watch for areas across central, north-central and northeast Illinois, as well as parts of northwest Indiana.

Lake in the Hills smoke seen Wednesday was from a prescribed burn, the chance of wildfires is reduced, and flooding is possible over the weekend, according to the weather service

The National Weather Service expects windy days through mid-week, warning residents of fire hazards with dry conditions

Dangerously cold wind chills, which could cause frostbite to exposed skin in under 30 minutes, are forecasted for most of northern Illinois from early Sunday until early Tuesday, according to the National Weather Service.

 The National Weather Service is forecasting a three-day stretch of extremely cold weather from Sunday through Tuesday.

A task force created in the wake of a deadly Metro East tornado has issued recommendations for better protecting warehouse workers.

Areas of northern Illinois could see up to two inches of snow starting Thursday afternoon

Northern Illinois could see a couple of shots of snow this week, starting late Tuesday night

DeKalb County saw its first snowfall of the season Thursday, and motorists were treated during the morning commute to slick and slushy conditions. Salt trucks were out and reported that all county highways were salted by about 10 a.m., officials said.

Between 8 a.m. and 2 p.m., snowfall rates could approach an inch per hour in some areas, contributing to accumulations of 1 to 4 inches, particularly on grassy and elevated surfaces

The season’s first hint of winter is expected late Wednesday with snowfall expected throughout much of the suburbs.

Thursday presents the best chance to see snowflakes during the morning hours in northern Illinois

The National Weather Service issued a red flag warning effective from noon to 9 p.m. Tuesday indicating possible fire danger for La Salle, Livingston, Grundy, Kankakee, Kendall, Will and DuPage counties.

Windy conditions are expected to hit northeastern Illinois between 4 p.m. and midnight as remnants of Hurricane Helene affect the midwest

Is the current summer-like September an anomaly? No – but Northern Illinois may see more of them.

Heat index values between 105 and 115 degrees are expected throughout Monday and Tuesday, according to the National Weather Service.

Hottest air of the summer to bake northern Illinois over the next 3 days, real feel temperatures to reach between 105-115

DeKalb, Ogle and Winnebago counties experienced the strongest straight line winds during the July 15 derecho that swept across northern Illinois, according to analysis of the event conducted by the National Weather Service.

Will County creates self-reporting survey to aid in assessing impact of Monday night storm and tornadoes.

Even though Monday’s tornado caused significant damage to his horse farm on Roth Road in Oswego Township, owner Bruce Grider realizes it could have been worse. “During a storm, the first thing I think of are the horses and the animals outside,” he said.

The lead pastor for Victory City Church in Joliet said volunteers provided food to 600 families on Wednesday evening. Volunteers plan to deliver more food at 6 p m.. Thursday at the church.

The storm systems that swept across northern Illinois Monday evening spawned at least two tornadoes in the Sauk Valley.