Air Quality Alert
ILZ100>102-MOZ061>065-090645-
Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-Franklin MO-
Saint Louis MO-Saint Louis City MO-Jefferson MO-
Including the cities of Alton, Edwardsville, Belleville, Cahokia,
Saint Charles, Washington, Union, Sullivan, and Saint Louis
142 AM CDT Tue Sep 8 2026
...AIR QUALITY ALERT IN EFFECT FROM 10 AM THIS MORNING TO 8 PM CDT
THIS EVENING...
The St. Louis Clean Air Partnership has issued an air quality alert
for the St. Louis metropolitan area from 10 AM this morning to 8 PM
CDT this evening.
An Orange air quality forecast means that maximum ozone
concentrations are expected to reach levels that pose a health risk.
Adverse health effects increase as air quality deteriorates. Ground-
level ozone is an air contaminant which can cause breathing
difficulties for children, older adults, as well as persons with
respiratory problems.
Reducing outdoor physical activity is recommended. If it is a
regularly scheduled work day you are urged to consider
telecommuting, carpooling, or utilizing public transit. Avoid
excessive idling and do not top off when refueling motor vehicles.
The use of gasoline-powered lawn equipment should be reduced or
postponed until late in the day.
For more information visit the St. Louis Clean Air Partnership at
http://cleanair-stlouis.com/
For current Air Quality Index (AQI) values visit
https://www.airnow.gov/
$$
Pfahler
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Lincoln IL
525 AM CDT Tue Sep 8 2026
ILZ027>031-036>038-040-041-091100-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-
525 AM CDT Tue Sep 8 2026
This Hazardous Weather Outlook is for central Illinois.
.DAY ONE...Today and tonight.
Scattered thunderstorms will begin moving into areas west of the
Illinois River late tonight. Severe weather is not expected during
this time.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Scattered thunderstorms will continue through Wednesday morning, with
new storms developing during the afternoon. A few of these will be
capable of producing strong winds and hail.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated through tonight.
$$
Hazardous Weather Outlook
National Weather Service Lincoln IL
525 AM CDT Tue Sep 8 2026
ILZ042>057-061>063-066>068-071>073-091100-
Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott-Morgan-
Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
525 AM CDT Tue Sep 8 2026
This Hazardous Weather Outlook is for central Illinois, east
central Illinois, southeast Illinois and west central Illinois.
.DAY ONE...Today and tonight.
Temperatures will reach the lower to mid 90s today, and while
humidity levels will be lower than the recent heat wave, heat
related illnesses will be possible with prolonged exposure.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday will be hot and more humid, and heat index values around
100 degrees are likely.
Thunderstorms will be scattered during the day, becoming more
widespread during the evening. A few of the storms will be capable of
producing strong wind gusts and hail. The rain will continue
overnight into Thursday morning, with a widespread 1 to 2 inches
likely. Areas near and south of I-70 have a 30 to 40 percent chance
of seeing more than 2 inches of accumulation.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated through tonight.
$$
Geelhart
Hazardous Weather Outlook
National Weather Service Paducah KY
419 AM CDT Tue Sep 8 2026
ILZ075>078-080>094-INZ081-082-085>088-KYZ001>022-MOZ076-086-087-
100-107>112-114-091000-
Jefferson-Wayne IL-Edwards-Wabash-Perry IL-Franklin-Hamilton-
White-Jackson-Williamson-Saline-Gallatin-Union-Johnson-Pope-
Hardin-Alexander-Pulaski-Massac-Gibson-Pike-Posey-Vanderburgh-
Warrick-Spencer-Fulton-Hickman-Carlisle-Ballard-McCracken-Graves-
Livingston-Marshall-Calloway-Crittenden-Lyon-Trigg-Caldwell-
Union KY-Webster-Hopkins-Christian-Henderson-Daviess-McLean-
Muhlenberg-Todd-Perry MO-Bollinger-Cape Girardeau-Wayne MO-Carter-
Ripley-Butler-Stoddard-Scott-Mississippi-New Madrid-
419 AM CDT Tue Sep 8 2026 /519 AM EDT Tue Sep 8 2026/
This Hazardous Weather Outlook is for portions of southern
Illinois, southwest Indiana, western Kentucky, and southeast
Missouri.
.DAY ONE...Today and Tonight
Heat indices will reach around 100 degrees this afternoon.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Heat indices in the 100 to 110 degree range are expected
Wednesday.
Scattered thunderstorms are forecast Wednesday afternoon through
Thursday night. A few strong to potentially severe storms with
damaging winds are possible late Wednesday afternoon into
Wednesday evening in southwest Indiana and portions of southern
Illinois and southeast Missouri. Otherwise, lightning and locally
heavy rainfall will be the primary storm hazards.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
327 AM CDT Tue Sep 8 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-090830-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
327 AM CDT Tue Sep 8 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...TODAY AND TONIGHT
Hot and active weather will return today. Heat indices will reach
into the mid 90s to near 100 degrees along and south of a Cedar
Rapids to Muscatine to Burlington line.
Additionally, showers and storms will bring a risk of heavy rain,
flash flooding and isolated to scattered severe thunderstorms to
areas along and north of a Fairfield to Bellevue line this evening
through Wednesday morning. WPC has issued a Slight, level 2 of 4,
risk for excessive rainfall and SPC has issued a Marginal/Slight,
level 1/2 of 5, risk for severe storms this evening through
Wednesday morning.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
Isolated thunderstorms are possible area-wide Wednesday morning
and will move southward across the area through Wednesday
afternoon.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed this evening through Wednesday
morning.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
225 AM CDT Tue Sep 8 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-090730-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
225 AM CDT Tue Sep 8 2026 /325 AM EDT Tue Sep 8 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Today and Tonight.
Weather hazards expected...
Limited Thunderstorm Risk.
DISCUSSION...
There is a chance of thunderstorms late tonight, especially near
and west of I-39. No severe weather is expected.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Late Saturday into Sunday...
Limited Thunderstorm Risk.
DISCUSSION...
Scattered thunderstorms could redevelop Wednesday afternoon south
of I-80. If storms do develop, there would be a low end threat
for isolated severe thunderstorms capable of producing locally
damaging winds gusts.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$
