Oneida, IL Weather & Growing Conditions
Today
84°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3pm. Mostly cloudy, with a high near 84. Southeast wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Chance Showers And Thunderstorms | 9 mph SE | 43% |
| Tonight | 66°F | Showers And Thunderstorms Likely | 6 mph WSW | 89% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 6 to 16 mph NNE | 72% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms | 14 to 17 mph NE | 55% |
| Monday | 64°F | Showers And Thunderstorms Likely | 17 mph ENE | 65% |
| Monday Night | 53°F | Chance Rain Showers | 13 to 16 mph NE | 51% |
| Tuesday | 62°F | Chance Rain Showers | 13 to 16 mph NE | 34% |
| Tuesday Night | 49°F | Partly Cloudy | 7 to 13 mph NNE | 8% |
| Wednesday | 66°F | Mostly Sunny | 8 to 12 mph NNE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 7 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 7 mph NNE | 6% |
| Thursday Night | 54°F | Partly Cloudy | 5 mph NE | 4% |
| Friday | 71°F | Mostly Sunny | 7 mph NE | 4% |
| Friday Night | 54°F | Partly Cloudy | 6 mph ENE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Oneida, IL
Last spring frost
Apr 28
First fall frost
Oct 12
Growing season
165 days
Hardiness zone
5b
Explore more for Oneida, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Altona, Il (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.