Fairbury, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairbury, a city in Livingston County, Illinois.
This Afternoon
78°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 5pm. Mostly cloudy, with a high near 78. East wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fairbury
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Showers And Thunderstorms Likely | 10 mph E | 61% |
| Tonight | 66°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 10 mph ESE | 15% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSE | 45% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 5 mph NW | 63% |
| 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 | 42% |
| Tuesday | 66°F | Chance Rain Showers | 10 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 | 0 to 10 mph NNE | 5% |
| Thursday | 71°F | Mostly Sunny | 0 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) for Fairbury (40.746, -88.516). Updated through the day.
Growing snapshot for Fairbury
Last spring frost
Apr 23
First fall frost
Oct 15
Growing season
174 days
Hardiness zone
6a
More local growing data for Fairbury: nearby ZIP 61739 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Campus
Chatsworth
Cornell
Cullom
Dwight
Emington
Flanagan
Forrest
Long Point
Odell
Pontiac
Saunemin
Strawn
Climate data from the nearest NOAA station, Chenoa, Il (10.3 mi from Fairbury). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.