Peoria County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Peoria County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 84.
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
- Apr 23 to Apr 24, 2026
- Latest sync
- Apr 18, 2026 12:33 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Peoria County
Thursday looks like the warmest upcoming period in Peoria County at 84 degrees F.
Friday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Thursday at about 8 to 17 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 12:33 PM CDT
- Coverage
- 2 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
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Mostly Sunny
|
84°F |
8 to 17 mph
S
|
|
Thursday Night
Apr 23
|
Showers And Thunderstorms Likely
|
61°F |
12 to 15 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
75°F |
12 to 15 mph
SW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms
|
47°F |
12 mph
W
|
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.
