Custer Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Custer Park, a community in Will County, Illinois.
Tonight
64°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 64. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Custer Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 10 mph ESE | 31% |
| Saturday | 82°F | Showers And Thunderstorms Likely | 5 to 10 mph SSE | 70% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely | 5 mph SW | 79% |
| Sunday | 72°F | Showers And Thunderstorms | 5 to 15 mph NNE | 79% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 71% |
| Monday | 67°F | Showers And Thunderstorms Likely | 10 to 15 mph ENE | 61% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 35% |
| Tuesday | 65°F | Chance Rain Showers | 10 mph NE | 25% |
| Tuesday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 16% |
| Wednesday | 68°F | Partly Sunny | 5 to 10 mph NNE | 6% |
| Wednesday Night | 53°F | Mostly Cloudy | 0 to 5 mph NNE | 6% |
| Thursday | 70°F | Partly Sunny | 0 to 5 mph NNE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph NNE | 3% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NNE | 3% |
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 Sep 19, 2026.