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Cullom, IL Weather & Growing Conditions

This Afternoon
78°F
Chance Rain Showers
A chance of rain showers. Cloudy. High near 78, with temperatures falling to around 76 in the afternoon. South wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 78°F Chance Rain Showers 5 mph S 13%
Tonight 67°F Chance Showers And Thunderstorms 0 to 5 mph ENE 51%
Sunday 74°F Showers And Thunderstorms Likely 0 to 10 mph NE 73%
Sunday Night 56°F Showers And Thunderstorms Likely 10 mph NE 61%
Monday 66°F Rain Showers Likely 10 to 15 mph ENE 60%
Monday Night 52°F Chance Rain Showers 10 mph ENE 37%
Tuesday 65°F Chance Rain Showers 10 mph NE 45%
Tuesday Night 52°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph NE 22%
Wednesday 67°F Mostly Cloudy 5 to 10 mph NNE 12%
Wednesday Night 52°F Mostly Cloudy 0 to 10 mph NNE 3%
Thursday 70°F Partly Sunny 5 mph NNE 2%
Thursday Night 54°F Mostly Cloudy 0 to 5 mph NE 7%
Friday 74°F Partly Sunny 0 to 5 mph NNE 4%
Friday Night 53°F Partly Cloudy 0 to 5 mph NE 3%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Cullom, IL

Last spring frost
Apr 25
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
5b

Explore more for Cullom, IL: full frost dates · planting calendar · Illinois frost dates

Climate data from the nearest NOAA station, Piper City, Il (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.