Wilton, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Wilton, IL in one place.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Wilton, 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: Jul 15, 2026 2:39 AM CDT.
The active forecast window currently covers Jul 16 to Jul 21, 2026 for Wilton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 2:39 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Wilton
Thursday looks like the warmest upcoming period in Wilton at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Saturday at about 5 to 15 mph WSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 2:39 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
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. Partly cloudy, with a low around 71. East southeast wind 0 to 5 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms likely. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1am. Partly cloudy, with a low around 71.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.
Mostly sunny, with a high near 87.
Partly cloudy, with a low around 68.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 87.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
0 to 5 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
71°F |
0 to 5 mph
ESE
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
88°F |
0 to 5 mph
SW
|
|
Friday Night
Jul 17
|
Showers And Thunderstorms Likely
|
71°F |
5 mph
SW
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
5 to 15 mph
WSW
|
|
Saturday Night
Jul 18
|
Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
NW
|
|
Sunday
Jul 19
|
Mostly Sunny
|
87°F |
5 mph
NNW
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
68°F |
5 mph
S
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
87°F |
5 to 10 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
68°F |
5 to 10 mph
W
|
|
Tuesday
Jul 21
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
84°F |
5 to 15 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Wilton.