Custer Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Custer Park, a community in Will County, Illinois.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. South wind around 5 mph, with gusts as high as 10 mph.
7-day forecast for Custer Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 5 mph S | 6% |
| Tonight | 66°F | Partly Cloudy | 0 to 5 mph S | 3% |
| Wednesday | 82°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 44% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 0 to 5 mph WSW | 87% |
| Thursday | 80°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 81% |
| Thursday Night | 63°F | Chance Showers And Thunderstorms | 0 mph | 45% |
| Friday | 83°F | Mostly Sunny | 0 mph | 5% |
| Friday Night | 64°F | Mostly Clear | 0 mph | 9% |
| Saturday | 85°F | Mostly Sunny | 0 to 5 mph SSW | 12% |
| Saturday Night | 69°F | Mostly Clear | 0 to 5 mph SSW | 12% |
| Sunday | 87°F | Mostly Sunny | 5 to 10 mph SW | 11% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 5 mph SSW | 30% |
| Monday | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 30% |
| Monday Night | 70°F | Chance Showers And Thunderstorms | 5 mph WSW | 39% |
Forecast source: National Weather Service (api.weather.gov) for Custer Park (41.243, -88.129). Updated through the day.
Growing snapshot for Custer Park
Last spring frost
Apr 16
First fall frost
Oct 26
Growing season
191 days
Hardiness zone
5b
More local growing data for Custer Park: nearby ZIP 60481 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Channahon Dresden Isl Dam, Il (11.8 mi from Custer Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.