Thornton, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Thornton, IL in one place.
Showers and thunderstorms. Partly sunny, with a high near 60.
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: Apr 15, 2026 3:40 PM CDT.
The active forecast window currently covers Apr 18 to Apr 21, 2026 for Thornton, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 3:40 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Thornton
Tuesday looks like the warmest upcoming period in Thornton at 72 degrees F.
Sunday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Saturday at about 15 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 3:40 PM CDT
- Coverage
- 4 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 rain showers before 7pm. Partly cloudy, with a low around 36.
Mostly sunny, with a high near 52.
Partly cloudy, with a low around 35.
Sunny, with a high near 60.
Partly cloudy, with a low around 48.
Mostly sunny, with a high near 72.
A slight chance of rain showers between 7pm and 1am. Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
60°F |
15 mph
W
|
|
Saturday Night
Apr 18
|
Slight Chance Rain Showers then Partly Cloudy
|
36°F |
10 to 15 mph
WNW
|
|
Sunday
Apr 19
|
Mostly Sunny
|
52°F |
10 to 15 mph
WNW
|
|
Sunday Night
Apr 19
|
Partly Cloudy
|
35°F |
5 to 10 mph
NNW
|
|
Monday
Apr 20
|
Sunny
|
60°F |
5 to 10 mph
ESE
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
48°F |
10 to 15 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
72°F |
15 mph
SW
|
|
Tuesday Night
Apr 21
|
Slight Chance Rain Showers
|
50°F |
10 to 15 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thornton.
