Harman US

Fairbury, IL Weather & Growing Conditions

This Afternoon
78°F
Partly Sunny
Partly sunny, with a high near 78. East wind around 10 mph. New rainfall amounts less than a tenth of an inch possible.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 78°F Partly Sunny 10 mph E 12%
Tonight 66°F Partly Cloudy 5 to 10 mph ESE 14%
Saturday 85°F Chance Showers And Thunderstorms 5 to 10 mph SSE 44%
Saturday Night 68°F Chance Showers And Thunderstorms 5 mph WNW 62%
Sunday 76°F Showers And Thunderstorms Likely 5 to 15 mph NNE 68%
Sunday Night 56°F Showers And Thunderstorms Likely 10 to 15 mph NE 68%
Monday 67°F Showers And Thunderstorms Likely 10 to 15 mph ENE 68%
Monday Night 51°F Chance Showers And Thunderstorms 10 to 15 mph NE 43%
Tuesday 66°F Chance Rain Showers 10 to 15 mph NE 25%
Tuesday Night 50°F Mostly Cloudy 5 to 10 mph NNE 9%
Wednesday 69°F Partly Sunny 5 to 10 mph NNE 5%
Wednesday Night 51°F Partly Cloudy 5 to 10 mph NNE 5%
Thursday 71°F Mostly Sunny 5 to 10 mph NNE 3%
Thursday Night 53°F Partly Cloudy 0 to 5 mph NNE 3%

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

Growing snapshot for Fairbury, IL

Last spring frost
Apr 23
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
6a

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

Climate data from the nearest NOAA station, Chenoa, Il (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.