Custer Park, IL Weather Forecast
Local 7-day forecast
Patchy Fog then Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Custer Park, IL in one place.
Patchy fog and showers and thunderstorms likely before 8am, then patchy fog and showers and thunderstorms likely between 8am and noon. Mostly cloudy. High near 83, with temperatures falling to around 79 in the afternoon. West northwest wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Custer Park, 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: Sep 17, 2026 8:46 AM CDT.
The active forecast window currently covers Sep 17 to Sep 23, 2026 for Custer Park, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 23, 2026
- Latest sync
- Sep 17, 2026 8:46 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Custer Park
Saturday looks like the warmest upcoming period in Custer Park at 88 degrees F.
Monday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Sunday Night at about 10 to 15 mph ENE.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 17, 2026 8:46 AM CDT
- Coverage
- 7 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 after 4am. Mostly cloudy, with a low around 65. Northeast wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly cloudy. High near 79, with temperatures falling to around 76 in the afternoon. East northeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Showers and thunderstorms likely. Partly sunny, with a high near 88. South southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 76.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 70.
A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
A slight chance of showers and thunderstorms before 7am. Partly sunny, with a high near 72.
Mostly cloudy, with a low around 56.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 17
|
Patchy Fog then Mostly Cloudy
|
83°F |
0 to 5 mph
WNW
|
|
Tonight
Sep 17
|
Mostly Cloudy then Slight Chance Rain Showers
|
65°F |
5 mph
NE
|
|
Friday
Sep 18
|
Slight Chance Rain Showers then Mostly Cloudy
|
79°F |
5 mph
ENE
|
|
Friday Night
Sep 18
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
65°F |
10 mph
ESE
|
|
Saturday
Sep 19
|
Showers And Thunderstorms Likely
|
88°F |
5 to 10 mph
SSE
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
67°F |
5 mph
SW
|
|
Sunday
Sep 20
|
Showers And Thunderstorms Likely
|
76°F |
5 to 10 mph
NNE
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
58°F |
10 to 15 mph
ENE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
70°F |
10 mph
ENE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
55°F |
5 to 10 mph
ENE
|
|
Tuesday
Sep 22
|
Slight Chance Showers And Thunderstorms then Partly Sunny
|
72°F |
5 mph
NE
|
|
Tuesday Night
Sep 22
|
Mostly Cloudy
|
56°F |
0 to 5 mph
NNE
|
|
Wednesday
Sep 23
|
Mostly Sunny
|
76°F |
0 to 5 mph
NNE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
57°F |
0 to 5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Custer Park.