Peoria County, IL Weather Forecast
County weather hub
Clear
Compare major city weather across Peoria County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Clear, with a low around 58. Northwest wind around 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
- Aug 23 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 2:59 AM 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 85 degrees F.
Sunday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Wednesday at about 2 to 8 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 2:59 AM 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
Sunny, with a high near 79. North northwest wind 3 to 7 mph.
Partly cloudy, with a low around 56. Northwest wind 0 to 5 mph.
Mostly sunny, with a high near 80. North northwest wind around 1 mph.
Mostly clear, with a low around 59. North northeast wind around 1 mph.
Mostly sunny, with a high near 82. South southeast wind 0 to 3 mph.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64. South wind around 2 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65.
Sunny, with a high near 84.
Mostly clear, with a low around 62.
Sunny, with a high near 83.
Partly cloudy, with a low around 64.
A slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 83.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 23
|
Clear
|
58°F |
5 mph
NW
|
|
Sunday
Aug 23
|
Sunny
|
79°F |
3 to 7 mph
NNW
|
|
Sunday Night
Aug 23
|
Partly Cloudy
|
56°F |
0 to 5 mph
NW
|
|
Monday
Aug 24
|
Mostly Sunny
|
80°F |
1 mph
NNW
|
|
Monday Night
Aug 24
|
Mostly Clear
|
59°F |
1 mph
NNE
|
|
Tuesday
Aug 25
|
Mostly Sunny
|
82°F |
0 to 3 mph
SSE
|
|
Tuesday Night
Aug 25
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
64°F |
2 mph
S
|
|
Wednesday
Aug 26
|
Slight Chance Showers And Thunderstorms
|
85°F |
2 to 8 mph
SW
|
|
Wednesday Night
Aug 26
|
Slight Chance Showers And Thunderstorms
|
65°F |
1 to 6 mph
W
|
|
Thursday
Aug 27
|
Sunny
|
84°F |
3 to 8 mph
NW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
62°F |
0 to 6 mph
NNW
|
|
Friday
Aug 28
|
Sunny
|
83°F |
0 to 3 mph
NNW
|
|
Friday Night
Aug 28
|
Partly Cloudy
|
64°F |
2 mph
ENE
|
|
Saturday
Aug 29
|
Slight Chance Showers And Thunderstorms
|
83°F |
2 to 6 mph
SE
|
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.
