Thornton, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Thornton, IL in one place.
A chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms between 10am and 2pm. Partly sunny, with a high near 86. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Thornton, 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 5:00 PM CDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Thornton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 5:00 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Thornton
Wednesday looks like the warmest upcoming period in Thornton at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 20 mph SSW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 5:00 PM 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 chance of showers and thunderstorms between 1am and 3am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. South southwest wind 5 to 10 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 91. South southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 87.
Showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 82.
Mostly clear, with a low around 62.
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 84.
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
SW
|
|
Tuesday Night
Jun 9
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
SSW
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms then Mostly Sunny
|
91°F |
10 to 20 mph
SSW
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely
|
71°F |
10 to 20 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
87°F |
10 to 20 mph
SSW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms
|
63°F |
5 to 20 mph
WSW
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
82°F |
5 to 15 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
62°F |
5 to 10 mph
WSW
|
|
Saturday
Jun 13
|
Sunny then Slight Chance Showers And Thunderstorms
|
84°F |
5 to 15 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
61°F |
5 to 10 mph
W
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
78°F |
5 to 10 mph
NNW
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms
|
57°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thornton.
