Princeville, IL Weather & Growing Conditions
Tonight
68°F
Partly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3am. Partly cloudy, with a low around 68. East southeast wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 9 mph ESE | 23% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 9 mph SSE | 32% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 7 mph NNE | 68% |
| Sunday | 75°F | Rain Showers | 6 to 15 mph NE | 76% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 13 to 16 mph NE | 71% |
| Monday | 66°F | Showers And Thunderstorms Likely | 17 mph ENE | 70% |
| Monday Night | 54°F | Chance Rain Showers | 13 to 17 mph NE | 42% |
| Tuesday | 65°F | Chance Rain Showers | 15 mph NE | 34% |
| Tuesday Night | 51°F | Mostly Cloudy | 6 to 13 mph NNE | 5% |
| Wednesday | 68°F | Partly Sunny | 10 mph NNE | 3% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 8 mph NNE | 3% |
| Thursday | 69°F | Mostly Sunny | 3 to 7 mph NNE | 3% |
| Thursday Night | 55°F | Partly Cloudy | 2 to 6 mph NE | 4% |
| Friday | 71°F | Mostly Sunny | 3 to 7 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Princeville, IL
Last spring frost
Apr 22
First fall frost
Oct 14
Growing season
174 days
Hardiness zone
5b
Explore more for Princeville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Princeville, Il (1.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.