Centralia, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Centralia, IL in one place.
Mostly cloudy, with a low around 66. East wind around 1 mph.
Local Weather Overview
This forecast page for Centralia, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 25, 2026 8:45 PM CDT.
The active forecast window currently covers Aug 25 to Sep 1, 2026 for Centralia, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 25 to Sep 1, 2026
- Latest sync
- Aug 25, 2026 8:45 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Centralia
Monday looks like the warmest upcoming period in Centralia at 93 degrees F.
Friday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Sunday at about 1 to 8 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 25, 2026 8:45 PM CDT
- Coverage
- 8 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny, with a high near 89. Southwest wind 0 to 6 mph.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. West wind 0 to 5 mph. Chance of precipitation is 40%.
Mostly sunny, with a high near 86. North wind 0 to 6 mph.
Mostly clear, with a low around 64. North wind around 3 mph.
Sunny, with a high near 86.
Clear, with a low around 61.
Sunny, with a high near 87.
Mostly clear, with a low around 65.
Sunny, with a high near 92.
Mostly clear, with a low around 71.
Mostly sunny, with a high near 93.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Aug 25
|
Mostly Cloudy
|
66°F |
1 mph
E
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
89°F |
0 to 6 mph
SW
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
67°F |
0 to 5 mph
W
|
|
Thursday
Aug 27
|
Mostly Sunny
|
86°F |
0 to 6 mph
N
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
64°F |
3 mph
N
|
|
Friday
Aug 28
|
Sunny
|
86°F |
1 to 5 mph
N
|
|
Friday Night
Aug 28
|
Clear
|
61°F |
2 mph
NE
|
|
Saturday
Aug 29
|
Sunny
|
87°F |
1 mph
E
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
65°F |
1 mph
SE
|
|
Sunday
Aug 30
|
Sunny
|
92°F |
1 to 8 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
71°F |
3 mph
S
|
|
Monday
Aug 31
|
Mostly Sunny
|
93°F |
3 to 8 mph
SW
|
|
Monday Night
Aug 31
|
Partly Cloudy then Slight Chance Rain Showers
|
73°F |
3 mph
S
|
|
Tuesday
Sep 1
|
Slight Chance Rain Showers
|
92°F |
1 to 5 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Centralia.