Trilla, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Trilla, a community in Cumberland County, Illinois.
This Afternoon
92°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 92. West southwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Trilla
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 92°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph WSW | 29% |
| Tonight | 70°F | Mostly Cloudy | 3 to 7 mph SSE | 14% |
| Sunday | 89°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 6 to 10 mph WNW | 23% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 8 to 13 mph NNE | 46% |
| Monday | 74°F | Showers And Thunderstorms Likely | 8 to 12 mph NE | 60% |
| Monday Night | 56°F | Chance Rain Showers | 8 to 12 mph NE | 39% |
| Tuesday | 69°F | Chance Rain Showers | 12 mph NE | 29% |
| Tuesday Night | 53°F | Mostly Cloudy | 6 to 12 mph NNE | 11% |
| Wednesday | 70°F | Partly Sunny | 9 mph N | 11% |
| Wednesday Night | 54°F | Partly Cloudy | 3 to 9 mph N | 1% |
| Thursday | 73°F | Partly Sunny | 7 mph N | 1% |
| Thursday Night | 56°F | Mostly Cloudy | 2 to 6 mph NNE | 4% |
| Friday | 76°F | Partly Sunny then Slight Chance Rain Showers | 5 to 8 mph NNE | 15% |
| Friday Night | 54°F | Slight Chance Rain Showers then Partly Cloudy | 6 mph NE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Trilla (39.375, -88.351). Updated through the day.
Growing snapshot for Trilla
Last spring frost
Apr 11
First fall frost
Oct 29
Growing season
199 days
Hardiness zone
6b
More local growing data for Trilla: nearby ZIP 62469 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mattoon, Il (8.5 mi from Trilla). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.