Marcelline, IL Weather & Growing Conditions
Tonight
51°F
Mostly Cloudy then Slight Chance Drizzle
A slight chance of drizzle after midnight. Mostly cloudy, with a low around 51. Southwest wind around 12 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Mostly Cloudy then Slight Chance Drizzle | 12 mph SW | 12% |
| Wednesday | 58°F | Slight Chance Drizzle then Mostly Cloudy | 12 to 16 mph W | 12% |
| Wednesday Night | 44°F | Mostly Cloudy | 9 mph SW | 2% |
| Thursday | 58°F | Mostly Cloudy | 8 to 12 mph W | 9% |
| Thursday Night | 43°F | Mostly Cloudy then Slight Chance T-storms | 7 mph NW | 22% |
| Friday | 55°F | Mostly Cloudy | 9 mph N | 3% |
| Friday Night | 38°F | Partly Cloudy | 1 to 6 mph N | 1% |
| Saturday | 56°F | Partly Sunny | 3 mph NW | 2% |
| Saturday Night | 38°F | Mostly Clear | 3 mph W | 3% |
| Sunday | 62°F | Sunny | 3 to 7 mph W | 9% |
| Sunday Night | 38°F | Mostly Clear | 5 mph W | 2% |
| Monday | 66°F | Sunny | 3 to 9 mph SW | 2% |
| Monday Night | 42°F | Mostly Clear | 6 mph W | 0% |
| Tuesday | 67°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marcelline, IL
Last spring frost
Apr 11
First fall frost
Oct 23
Growing season
194 days
Hardiness zone
6a
Explore more for Marcelline, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Canton L&D 20, Mo (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.