Wilmington, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Wilmington, IL in one place.
Sunny, with a high near 78.
Local Weather Overview
This forecast page for Wilmington, 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 20, 2026 2:12 AM CDT.
The active forecast window currently covers Apr 22 to Apr 26, 2026 for Wilmington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 2:12 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Wilmington
Thursday looks like the warmest upcoming period in Wilmington at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Thursday at about 10 to 20 mph S.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 2:12 AM CDT
- Coverage
- 5 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
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 82.
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely. Mostly cloudy, with a high near 74.
A chance of rain showers. Mostly cloudy, with a low around 48.
A chance of rain showers before 1pm. Mostly sunny, with a high near 67.
A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 46.
A slight chance of rain showers. Partly sunny, with a high near 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Sunny
|
78°F |
5 mph
WSW
|
|
Wednesday Night
Apr 22
|
Partly Cloudy
|
58°F |
5 to 10 mph
SSE
|
|
Thursday
Apr 23
|
Mostly Sunny
|
82°F |
10 to 20 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms
|
61°F |
15 to 20 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
74°F |
15 mph
WSW
|
|
Friday Night
Apr 24
|
Chance Rain Showers
|
48°F |
10 mph
NNW
|
|
Saturday
Apr 25
|
Chance Rain Showers
|
67°F |
10 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers
|
46°F |
5 to 10 mph
NNE
|
|
Sunday
Apr 26
|
Slight Chance Rain Showers
|
66°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Wilmington.
