Oak Run, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Oak Run, a community in Knox County, Illinois.

Tonight

52°F

Showers And Thunderstorms

Showers and thunderstorms. Mostly cloudy, with a low around 52. South wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Oak Run

When	Temp	Forecast	Wind	Precip
Tonight	52°F	Showers And Thunderstorms	10 to 16 mph S	79%
Wednesday	57°F	Slight Chance Light Rain then Mostly Cloudy	16 mph SW	22%
Wednesday Night	45°F	Mostly Cloudy	9 to 13 mph SW	7%
Thursday	57°F	Mostly Cloudy then Slight Chance Light Rain	8 to 13 mph WSW	23%
Thursday Night	42°F	Chance Light Rain	3 to 7 mph NW	30%
Friday	53°F	Slight Chance Light Rain	6 to 10 mph N	15%
Friday Night	35°F	Partly Cloudy	0 to 5 mph N	1%
Saturday	53°F	Mostly Sunny	0 to 5 mph NW	3%
Saturday Night	35°F	Partly Cloudy	2 mph WNW	3%
Sunday	58°F	Sunny	2 to 8 mph WNW	12%
Sunday Night	35°F	Mostly Clear	1 to 5 mph W	3%
Monday	63°F	Sunny	2 to 12 mph SW	1%
Monday Night	40°F	Mostly Clear	6 mph W	0%
Tuesday	64°F	Sunny	6 mph NW	0%

Forecast source: National Weather Service (api.weather.gov) for Oak Run (40.960, -90.130). Updated through the day.

Growing snapshot for Oak Run

Last spring frost

Apr 21

First fall frost

Oct 20

Growing season

181 days

Hardiness zone

More local growing data for Oak Run: nearby ZIP 61428 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

Abingdon Altona East Galesburg Galesburg Gilson Henderson Knoxville Maquon Nekoma Oneida Rio St. Augustine Victoria Wataga Williamsfield Yates City

All Illinois locations ›

Climate data from the nearest NOAA station, Knoxville, Il (9.4 mi from Oak Run). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.