Custer, IL Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Custer, IL in one place.
Mostly clear, with a low around 54. Northeast wind 6 to 14 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Custer, 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 1, 2026 8:48 PM CDT.
The active forecast window currently covers Jun 1 to Jun 8, 2026 for Custer, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 1 to Jun 8, 2026
- Latest sync
- Jun 1, 2026 8:48 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Custer
Monday looks like the warmest upcoming period in Custer at 89 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Thursday at about 7 to 15 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 8:48 PM CDT
- Coverage
- 8 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 82. East northeast wind 6 to 10 mph, with gusts as high as 16 mph.
Clear, with a low around 53. East wind 3 to 9 mph, with gusts as high as 16 mph.
Sunny, with a high near 83. Southeast wind 3 to 7 mph.
Mostly clear, with a low around 57. South wind around 6 mph.
Sunny, with a high near 87. South southwest wind 7 to 15 mph, with gusts as high as 22 mph.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 64. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms. Partly sunny, with a high near 87.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 65.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Jun 1
|
Mostly Clear
|
54°F |
6 to 14 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
6 to 10 mph
ENE
|
|
Tuesday Night
Jun 2
|
Clear
|
53°F |
3 to 9 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
83°F |
3 to 7 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
6 mph
S
|
|
Thursday
Jun 4
|
Sunny
|
87°F |
7 to 15 mph
SSW
|
|
Thursday Night
Jun 4
|
Partly Cloudy then Slight Chance Rain Showers
|
64°F |
9 to 13 mph
SSW
|
|
Friday
Jun 5
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
87°F |
14 mph
SSW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
66°F |
8 to 14 mph
SSW
|
|
Saturday
Jun 6
|
Showers And Thunderstorms Likely
|
86°F |
12 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
65°F |
6 to 10 mph
WSW
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
87°F |
7 to 10 mph
SSE
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
65°F |
9 mph
ESE
|
|
Monday
Jun 8
|
Chance Showers And Thunderstorms
|
89°F |
8 to 13 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Custer.