Piatt County, IL Weather Forecast
County weather hub
Partly Sunny
Compare major city weather across Piatt County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly sunny, with a high near 66. East southeast wind around 12 mph, with gusts as high as 17 mph. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Piatt County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Piatt County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 4:31 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Piatt County
Tuesday looks like the warmest upcoming period in Piatt County at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Sunday at about 14 to 26 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 4:31 AM 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
Mostly cloudy, with a low around 56. South southeast wind 10 to 14 mph, with gusts as high as 22 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. South wind 14 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South southwest wind 18 to 23 mph, with gusts as high as 35 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64.
Showers and thunderstorms likely. Partly sunny, with a high near 79.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
A chance of rain showers. Partly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Partly Sunny
|
66°F |
12 mph
ESE
|
|
Saturday Night
Apr 11
|
Mostly Cloudy
|
56°F |
10 to 14 mph
SSE
|
|
Sunday
Apr 12
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
79°F |
14 to 26 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
62°F |
18 to 23 mph
SSW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
81°F |
17 to 21 mph
SSW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
65°F |
17 mph
SSW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
83°F |
16 to 22 mph
SSW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
64°F |
20 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
79°F |
17 to 21 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
56°F |
10 to 16 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
78°F |
10 to 15 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Piatt County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Piatt County.
Largest mapped city population in this region: 5,557.
