Preston Heights, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preston Heights, a community in Will County, Illinois.
This Afternoon
73°F
Chance Rain
A chance of rain and a slight chance of thunderstorms. Mostly cloudy. High near 73, 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 Preston Heights
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Chance Rain | 15 to 20 mph S | 41% |
| Tonight | 60°F | Rain | 15 mph S | 85% |
| Wednesday | 63°F | Chance Rain then Mostly Cloudy | 15 mph SSW | 54% |
| Wednesday Night | 48°F | Mostly Cloudy | 15 mph SW | 10% |
| Thursday | 58°F | Mostly Cloudy then Slight Chance Rain | 10 to 15 mph WSW | 23% |
| Thursday Night | 43°F | Chance Rain | 5 to 10 mph WNW | 37% |
| Friday | 54°F | Slight Chance Rain | 10 mph N | 23% |
| Friday Night | 36°F | Partly Cloudy | 5 to 10 mph NNW | 8% |
| Saturday | 53°F | Mostly Sunny | 0 to 5 mph WNW | 7% |
| Saturday Night | 34°F | Partly Cloudy | 0 mph | 3% |
| Sunday | 57°F | Mostly Sunny | 5 to 10 mph W | 12% |
| Sunday Night | 35°F | Mostly Clear | 0 to 5 mph WNW | 8% |
| Monday | 62°F | Sunny | 5 to 10 mph WSW | 4% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Preston Heights (41.495, -88.081). Updated through the day.
Growing snapshot for Preston Heights
Last spring frost
Apr 19
First fall frost
Oct 25
Growing season
188 days
Hardiness zone
6a
More local growing data for Preston Heights: nearby ZIP 60433 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Joliet Brandon Rd Dam, Il (3.2 mi from Preston Heights). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.