Wellington, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Wellington, IL in one place.
Showers and thunderstorms likely after 3pm. Mostly sunny. High near 89, with temperatures falling to around 86 in the afternoon. Heat index values as high as 102. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Wellington, 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 17, 2026 3:06 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Wellington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:06 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Wellington
Saturday looks like the warmest upcoming period in Wellington at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:06 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
Showers and thunderstorms likely before 11pm. Partly cloudy, with a low around 65. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
Sunny, with a high near 84. Northeast wind 0 to 5 mph.
Mostly clear, with a low around 63.
Mostly sunny, with a high near 87.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 71.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86.
Mostly clear, with a low around 62.
Sunny, with a high near 79.
Mostly clear, with a low around 58.
Sunny, with a high near 79.
Partly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Mostly Sunny then Showers And Thunderstorms Likely
|
89°F |
5 to 10 mph
W
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely then Partly Cloudy
|
65°F |
5 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
84°F |
0 to 5 mph
NE
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
63°F |
0 mph
|
|
Monday
Jul 20
|
Mostly Sunny
|
87°F |
0 to 5 mph
S
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
71°F |
5 to 10 mph
SW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms then Mostly Sunny
|
86°F |
10 to 15 mph
W
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
62°F |
5 to 10 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
79°F |
5 to 10 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
58°F |
0 to 5 mph
NNE
|
|
Thursday
Jul 23
|
Sunny
|
79°F |
0 mph
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
59°F |
0 mph
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Wellington.