Triumph, IL Weather & Growing Conditions
Today
81°F
Showers And Thunderstorms
Showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Cloudy. High near 81, with temperatures falling to around 78 in the afternoon. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Showers And Thunderstorms | 5 mph SE | 77% |
| Tonight | 65°F | Showers And Thunderstorms Likely then Showers And Thunderstorms | 5 mph S | 94% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph NNE | 66% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 15 mph NE | 45% |
| Monday | 65°F | Rain Showers Likely | 15 mph ENE | 55% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Tuesday | 63°F | Slight Chance Rain Showers | 15 mph NE | 18% |
| Tuesday Night | 51°F | Partly Cloudy | 10 to 15 mph NNE | 13% |
| Wednesday | 67°F | Mostly Sunny | 10 to 15 mph NNE | 4% |
| Wednesday Night | 52°F | Partly Cloudy | 5 to 10 mph NNE | 1% |
| Thursday | 69°F | Mostly Sunny | 5 to 10 mph NNE | 3% |
| Thursday Night | 53°F | Partly Cloudy | 5 mph NE | 3% |
| Friday | 72°F | Mostly Sunny | 5 mph NE | 2% |
| Friday Night | 53°F | Partly Cloudy | 5 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Triumph, IL
Last spring frost
Apr 24
First fall frost
Oct 18
Growing season
176 days
Explore more for Triumph, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Peru, Il (11.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.