Waynesville, IL Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Waynesville, IL in one place.
Rain showers. Mostly sunny, with a high near 57. West northwest wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Waynesville, 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: Apr 16, 2026 6:38 AM CDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Waynesville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 6:38 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Waynesville
Wednesday looks like the warmest upcoming period in Waynesville at 76 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Saturday at about 18 mph WNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 6:38 AM CDT
- Coverage
- 5 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 slight chance of rain showers before 7pm, then patchy frost. Mostly clear, with a low around 36. West northwest wind 9 to 16 mph, with gusts as high as 24 mph. New rainfall amounts less than a tenth of an inch possible.
Patchy frost before 8am. Sunny, with a high near 57.
Mostly clear, with a low around 37.
Sunny, with a high near 65.
Mostly clear, with a low around 49.
Mostly sunny, with a high near 74.
A slight chance of rain showers after 1am. Mostly clear, with a low around 52.
A slight chance of rain showers. Sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Rain Showers
|
57°F |
18 mph
WNW
|
|
Saturday Night
Apr 18
|
Slight Chance Rain Showers then Patchy Frost
|
36°F |
9 to 16 mph
WNW
|
|
Sunday
Apr 19
|
Patchy Frost then Sunny
|
57°F |
9 to 17 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
37°F |
7 to 13 mph
SW
|
|
Monday
Apr 20
|
Sunny
|
65°F |
8 to 13 mph
SSE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
13 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
74°F |
13 to 17 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear then Slight Chance Rain Showers
|
52°F |
10 to 14 mph
SW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers
|
76°F |
9 to 14 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waynesville.