Prairie City, IL Weather & Growing Conditions
Overnight
68°F
Patchy Fog
Patchy fog. Mostly cloudy. Low around 68, with temperatures rising to around 73 overnight. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Patchy Fog | 5 mph S | 13% |
| Saturday | 86°F | Patchy Fog then Mostly Cloudy | 5 to 10 mph S | 16% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms | 5 mph W | 73% |
| Sunday | 75°F | Showers And Thunderstorms | 0 to 15 mph N | 84% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 68% |
| Monday | 64°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 68% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 48% |
| Tuesday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 24% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 67°F | Mostly Sunny | 5 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 69°F | Partly Sunny | 0 to 5 mph NE | 5% |
| Thursday Night | 54°F | Mostly Cloudy | 0 to 5 mph NE | 4% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Prairie City, IL
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
185 days
Hardiness zone
6a
Explore more for Prairie City, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Prairie City 2S, Il (2.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.