Weather alerts in Peoria, Illinois today
National Weather Service
An advisory is in effect for Peoria: Frost Advisory.
Always follow your local National Weather Service office and local officials. Details below.
Official weather alerts for Peoria
1 advisory or statement
Frost Advisory until Sat, Oct 17, 9:00 AM CDT
Frost Advisory issued October 16 at 2:54PM CDT until October 17 at 9:00AM CDT by NWS Lincoln IL
Knox; Stark; Peoria; Marshall; Woodford; Fulton; Tazewell; Schuyler; Mason; Logan; Cass; Menard; Scott; Morgan; Sangamon; Christian
Full text from the National Weather Service
FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT SATURDAY
* WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Portions of central and west central Illinois. * WHEN...From 1 AM to 9 AM CDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
Instructions: Take steps now to protect tender plants from the cold.
Official NWS page · NWS Lincoln IL
Storm Prediction Center · today's severe-storm outlook · issued 1 h ago
Peoria is outside today's thunderstorm and severe-storm areas.
Official SPC Day 1 Convective Outlook (NOAA), valid until Sat, Oct 17, 7:00 AM CDT. It shows the chance of severe storms in the area, not a warning for your street. SPC outlook
U.S. Drought Monitor · map of October 13
21% of Illinois is in drought.
Share of the state's area. Updated every Thursday by the U.S. Drought Monitor (National Drought Mitigation Center, USDA and NOAA). Drought builds over weeks and months: one rainy day rarely ends it.
Weather in Peoria now
Rain forecast for Peoria · next days
Automatic forecast from a computer model (MET Norway, data CC BY 4.0). Not an official alert: for watches and warnings, follow National Weather Service.
What do the inches mean?
As a rough guide: under a quarter inch in a day is light rain; 1 to 2 inches is a heavy downpour; more than 2 inches in a day is very heavy rain that can flood low-lying areas and roads.
Several rainy days in a row saturate the ground: even a modest storm can then cause flash flooding and rising rivers.
What is normal in October in Peoria
changing season Fall: usually calmer, with occasional severe storms along autumn cold fronts. The first freeze and snow arrive by November.
El Niño is under way, and NOAA expects it to be strong (NOAA, October 8, 2026).
In the Midwest it tends to bring a milder winter with less snow, especially in the north.
These are general tendencies: every year is different, and your local forecast comes first.
Typical climate per NOAA and regional weather services. It describes the season, not the forecast for a given day.
Official sources for Illinois
Emergency: 911