Peoria County, IL Weather Forecast
County weather hub
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. Mostly cloudy, with a high near 89. West southwest wind around 6 mph. Chance of precipitation is 30%. 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
- Jul 9 to Jul 15, 2026
- Latest sync
- Jul 9, 2026 4:41 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 91 degrees F.
Friday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Sunday at about 3 to 7 mph ENE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 4:41 PM CDT
- Coverage
- 7 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 8pm, then a chance of showers and thunderstorms between 8pm and 9pm, then a slight chance of showers and thunderstorms between 9pm and 2am. Partly cloudy, with a low around 69. South southwest wind 0 to 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 86. North northeast wind 0 to 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. East northeast wind 1 to 5 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain showers before 1pm. Partly sunny, with a high near 85. East northeast wind 2 to 6 mph. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 65. Northeast wind around 5 mph.
Sunny, with a high near 86. East northeast wind 3 to 7 mph.
Mostly clear, with a low around 66.
Sunny, with a high near 89.
Clear, with a low around 67.
Sunny, with a high near 90.
Mostly clear, with a low around 69.
Sunny, with a high near 91.
Mostly clear, with a low around 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 9
|
Chance Showers And Thunderstorms
|
89°F |
6 mph
WSW
|
|
Tonight
Jul 9
|
Chance Showers And Thunderstorms
|
69°F |
0 to 6 mph
SSW
|
|
Friday
Jul 10
|
Partly Sunny then Chance Showers And Thunderstorms
|
86°F |
0 to 5 mph
NNE
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms
|
65°F |
1 to 5 mph
ENE
|
|
Saturday
Jul 11
|
Slight Chance Rain Showers
|
85°F |
2 to 6 mph
ENE
|
|
Saturday Night
Jul 11
|
Partly Cloudy
|
65°F |
5 mph
NE
|
|
Sunday
Jul 12
|
Sunny
|
86°F |
3 to 7 mph
ENE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
66°F |
0 to 6 mph
NE
|
|
Monday
Jul 13
|
Sunny
|
89°F |
1 to 5 mph
ENE
|
|
Monday Night
Jul 13
|
Clear
|
67°F |
0 to 5 mph
ENE
|
|
Tuesday
Jul 14
|
Sunny
|
90°F |
0 to 3 mph
E
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
69°F |
2 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
1 to 5 mph
WSW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
70°F |
3 mph
S
|
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.
