Custer Park, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Custer Park, a community in Will County, Illinois.
This Afternoon
74°F
Chance Rain
A chance of rain. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. South wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Custer Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Chance Rain | 15 to 20 mph S | 41% |
| Tonight | 60°F | Rain | 15 mph S | 84% |
| Wednesday | 64°F | Chance Rain then Mostly Cloudy | 15 mph SSW | 45% |
| Wednesday Night | 48°F | Mostly Cloudy | 10 mph SW | 7% |
| Thursday | 60°F | Mostly Cloudy | 10 to 15 mph WSW | 12% |
| Thursday Night | 43°F | Chance Rain | 5 mph WNW | 34% |
| Friday | 55°F | Slight Chance Rain | 5 to 10 mph NNW | 21% |
| Friday Night | 35°F | Partly Cloudy | 0 to 5 mph NNW | 8% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph WNW | 7% |
| Saturday Night | 33°F | Partly Cloudy | 0 mph | 3% |
| Sunday | 58°F | Mostly Sunny | 0 to 5 mph W | 10% |
| Sunday Night | 34°F | Mostly Clear | 0 to 5 mph WNW | 9% |
| Monday | 63°F | Sunny | 0 to 10 mph WSW | 4% |
| Monday Night | 38°F | Mostly Clear | 5 mph WSW | 2% |
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 Nov 3, 2026.