Harman US

Cullom, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Cullom, a village in Livingston County, Illinois.

This Afternoon
65°F
Slight Chance Rain Showers
A slight chance of rain showers and a slight chance of drizzle. Cloudy. High near 65, with temperatures falling to around 56 in the afternoon. West southwest wind around 15 mph, with gusts as high as 25 mph.

7-day forecast for Cullom

WhenTempForecastWindPrecip
This Afternoon 65°F Slight Chance Rain Showers 15 mph WSW 9%
Tonight 44°F Slight Chance Rain Showers then Cloudy 10 to 15 mph SW 3%
Thursday 57°F Mostly Cloudy then Chance Rain 10 to 15 mph WSW 37%
Thursday Night 37°F Chance Rain then Cloudy 5 to 10 mph NW 41%
Friday 52°F Partly Sunny 5 to 10 mph NNW 3%
Friday Night 30°F Mostly Clear 0 to 5 mph NNW 0%
Saturday 53°F Sunny 0 to 5 mph NW 0%
Saturday Night 29°F Mostly Clear 0 mph 0%
Sunday 60°F Sunny 0 to 10 mph W 1%
Sunday Night 32°F Mostly Clear 0 to 5 mph W 0%
Monday 64°F Sunny 0 to 5 mph WSW 0%
Monday Night 37°F Clear 0 to 5 mph WSW 0%
Tuesday 65°F Sunny 0 to 5 mph WNW 1%
Tuesday Night 35°F Partly Cloudy 0 mph 2%

Forecast source: National Weather Service (api.weather.gov) for Cullom (40.878, -88.270). Updated through the day.

Growing snapshot for Cullom

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

More local growing data for Cullom: nearby ZIP 60929 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

All Illinois locations ›

Climate data from the nearest NOAA station, Piper City, Il (10 mi from Cullom). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.