Peoria County, IL Weather Forecast
County weather hub
Sunny then Chance Showers And Thunderstorms
Compare major city weather across Peoria County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Heat index values as high as 101. South southwest wind 8 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
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
- Jun 10 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 6:39 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Peoria County
Wednesday looks like the warmest upcoming period in Peoria County at 93 degrees F.
Monday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Thursday at about 6 to 20 mph SSW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 6:39 PM CDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 9pm, then showers and thunderstorms likely between 9pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms between 1am and 3am, then a slight chance of showers and thunderstorms between 3am and 4am. Partly cloudy, with a low around 72. Heat index values as high as 101. South southwest wind 6 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 10am, then showers and thunderstorms. Mostly sunny, with a high near 92. South southwest wind 6 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 1am. Partly cloudy, with a low around 61. West wind 5 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunny, with a high near 83. West northwest wind 5 to 12 mph, with gusts as high as 20 mph.
Clear, with a low around 60.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 86.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 63.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
A slight chance of showers and thunderstorms. Partly sunny, with a high near 77.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Sunny then Chance Showers And Thunderstorms
|
93°F |
8 to 18 mph
SSW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
72°F |
6 to 18 mph
SSW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms
|
92°F |
6 to 20 mph
SSW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
61°F |
5 to 18 mph
W
|
|
Friday
Jun 12
|
Sunny
|
83°F |
5 to 12 mph
WNW
|
|
Friday Night
Jun 12
|
Clear
|
60°F |
1 to 7 mph
WSW
|
|
Saturday
Jun 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
86°F |
3 to 12 mph
SSW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
63°F |
3 to 9 mph
SW
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
81°F |
6 to 10 mph
NNW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
57°F |
5 to 10 mph
NNE
|
|
Monday
Jun 15
|
Slight Chance Showers And Thunderstorms
|
77°F |
5 to 9 mph
NW
|
|
Monday Night
Jun 15
|
Slight Chance Showers And Thunderstorms
|
55°F |
2 to 8 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.
