Wilsonville, IL Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Wilsonville, IL in one place.
A chance of rain showers before 10am, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 100. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Wilsonville, 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: Jun 8, 2026 5:45 PM CDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Wilsonville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 5:45 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Wilsonville
Wednesday looks like the warmest upcoming period in Wilsonville at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Thursday at about 9 to 17 mph S.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 5:45 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Heat index values as high as 100. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Sunny, with a high near 92. Southwest wind 7 to 15 mph.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 40%.
A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
A slight chance of rain showers after 1am. Mostly clear, with a low around 63. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Sunny, with a high near 86. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Slight Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
SW
|
|
Tuesday Night
Jun 9
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
5 to 8 mph
SW
|
|
Wednesday
Jun 10
|
Sunny
|
92°F |
7 to 15 mph
SW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
73°F |
9 to 15 mph
S
|
|
Thursday
Jun 11
|
Chance Showers And Thunderstorms
|
91°F |
9 to 17 mph
S
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
6 to 16 mph
W
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
84°F |
7 mph
NW
|
|
Friday Night
Jun 12
|
Mostly Clear then Slight Chance Rain Showers
|
63°F |
1 to 5 mph
SW
|
|
Saturday
Jun 13
|
Slight Chance Showers And Thunderstorms
|
86°F |
2 to 9 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
65°F |
7 mph
W
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
82°F |
5 to 12 mph
N
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
61°F |
5 to 10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Wilsonville.