Carlinville, IL Weather & Growing Conditions
Overnight
70°F
Mostly Clear
Mostly clear, with a low around 70. Southeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Mostly Clear | 7 mph SE | 4% |
| Saturday | 95°F | Partly Sunny | 6 mph SW | 10% |
| Saturday Night | 69°F | Partly Cloudy | 3 mph SW | 6% |
| Sunday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 1 to 7 mph NW | 40% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 70% |
| Monday | 74°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 70% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 6 to 12 mph NE | 46% |
| Tuesday | 69°F | Slight Chance Rain Showers | 12 mph NE | 21% |
| Tuesday Night | 50°F | Mostly Cloudy | 3 to 10 mph N | 12% |
| Wednesday | 72°F | Mostly Sunny | 5 to 9 mph N | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Thursday | 74°F | Mostly Sunny | 3 to 7 mph N | 2% |
| Thursday Night | 54°F | Partly Cloudy | 2 to 6 mph NE | 4% |
| Friday | 76°F | Mostly Sunny | 2 to 7 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Carlinville, IL
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
6b
Explore more for Carlinville, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Carlinville, Il (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.