Percy, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Percy, a village in Randolph County, Illinois.
Tonight
70°F
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 70. Southeast wind around 2 mph. Chance of precipitation is 20%.
7-day forecast for Percy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 2 mph SE | 21% |
| Saturday | 97°F | Mostly Sunny | 2 to 6 mph SW | 5% |
| Saturday Night | 71°F | Partly Cloudy | 3 mph S | 0% |
| Sunday | 95°F | Mostly Sunny | 6 mph W | 6% |
| Sunday Night | 67°F | Mostly Cloudy then Chance Showers And Thunderstorms | 3 mph N | 36% |
| Monday | 85°F | Chance Showers And Thunderstorms | 3 to 8 mph N | 53% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 53% |
| Tuesday | 74°F | Slight Chance Rain Showers then Partly Sunny | 7 to 12 mph N | 15% |
| Tuesday Night | 55°F | Partly Cloudy | 5 to 12 mph N | 7% |
| Wednesday | 75°F | Mostly Sunny | 6 to 9 mph N | 3% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 7 mph N | 2% |
| Thursday | 76°F | Mostly Sunny | 2 to 8 mph N | 1% |
| Thursday Night | 56°F | Partly Cloudy | 2 to 6 mph N | 2% |
| Friday | 77°F | Mostly Sunny | 3 to 8 mph N | 4% |
Forecast source: National Weather Service (api.weather.gov) for Percy (38.015, -89.618). Updated through the day.
Growing snapshot for Percy
Last spring frost
Apr 12
First fall frost
Oct 22
Growing season
191 days
Hardiness zone
7a
More local growing data for Percy: nearby ZIP 62272 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sparta 1 W, Il (10 mi from Percy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.