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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

WhenTempForecastWindPrecip
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.