Belgium, IL Weather Forecast
Local 7-day forecast
Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Belgium, IL in one place.
A chance of showers and thunderstorms after 4pm. Sunny, with a high near 90. Heat index values as high as 100. West wind around 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Belgium, 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 18, 2026 11:54 AM CDT.
The active forecast window currently covers Jul 18 to Jul 24, 2026 for Belgium, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 24, 2026
- Latest sync
- Jul 18, 2026 11:54 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Belgium
Today looks like the warmest upcoming period in Belgium at 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Tuesday at about 12 to 17 mph W.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 18, 2026 11:54 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KIND
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 before 7pm, then showers and thunderstorms likely between 7pm and 8pm, then a chance of showers and thunderstorms between 8pm and midnight. Partly cloudy, with a low around 67. North wind 3 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Patchy smoke after 7am. Mostly sunny, with a high near 85. Northeast wind around 6 mph.
Patchy smoke before 2am. Mostly clear, with a low around 64. East wind 1 to 6 mph.
Mostly sunny, with a high near 88. South southeast wind around 5 mph.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. South southwest wind 6 to 12 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. West wind 12 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 63. Chance of precipitation is 30%.
Sunny, with a high near 78.
Mostly clear, with a low around 57.
Sunny, with a high near 80.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 61.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 82.
Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 18
|
Sunny then Chance Showers And Thunderstorms
|
90°F |
13 mph
W
|
|
Tonight
Jul 18
|
Chance Showers And Thunderstorms then Partly Cloudy
|
67°F |
3 to 10 mph
N
|
|
Sunday
Jul 19
|
Patchy Smoke
|
85°F |
6 mph
NE
|
|
Sunday Night
Jul 19
|
Patchy Smoke
|
64°F |
1 to 6 mph
E
|
|
Monday
Jul 20
|
Mostly Sunny
|
88°F |
5 mph
SSE
|
|
Monday Night
Jul 20
|
Partly Cloudy then Chance Showers And Thunderstorms
|
72°F |
6 to 12 mph
SSW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms
|
88°F |
12 to 17 mph
W
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms then Mostly Clear
|
63°F |
8 to 15 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
78°F |
13 mph
NNW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
57°F |
1 to 10 mph
N
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
3 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Rain Showers
|
61°F |
2 mph
SSE
|
|
Friday
Jul 24
|
Slight Chance Rain Showers
|
82°F |
2 to 6 mph
SSE
|
|
Friday Night
Jul 24
|
Partly Cloudy
|
63°F |
5 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Belgium.