Peoria County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Peoria County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 86. East northeast wind 0 to 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Peoria County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 6 of 6 mapped cities in Peoria County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 25 to May 29, 2026
- Latest sync
- May 23, 2026 2:07 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Peoria County
Memorial Day looks like the warmest upcoming period in Peoria County at 86 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Wednesday at about 2 to 10 mph E.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- May 23, 2026 2:07 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 60. East wind around 2 mph.
Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 64.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Memorial Day
May 25
|
Sunny
|
86°F |
0 to 5 mph
ENE
|
|
Monday Night
May 25
|
Mostly Clear
|
60°F |
2 mph
E
|
|
Tuesday
May 26
|
Mostly Sunny
|
86°F |
0 to 8 mph
ESE
|
|
Tuesday Night
May 26
|
Slight Chance Showers And Thunderstorms
|
64°F |
2 to 6 mph
E
|
|
Wednesday
May 27
|
Chance Showers And Thunderstorms
|
84°F |
2 to 10 mph
E
|
|
Wednesday Night
May 27
|
Chance Showers And Thunderstorms
|
63°F |
6 to 9 mph
E
|
|
Thursday
May 28
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
6 to 10 mph
ENE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms
|
62°F |
6 to 9 mph
ENE
|
|
Friday
May 29
|
Slight Chance Showers And Thunderstorms
|
82°F |
6 to 10 mph
ENE
|
Major City Forecasts
Live forecast snapshots for major cities across Peoria County.
Coverage
Forecast coverage currently spans 6 of 6 mapped cities in Peoria County.
Largest mapped city population in this region: 109,428.
