Forrest, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Forrest, a village in Livingston County, Illinois.
Tonight
65°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 65. East southeast wind around 5 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Forrest
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 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 W | 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 | 10% |
| Wednesday | 69°F | Partly Sunny | 5 to 10 mph NNE | 6% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph NNE | 6% |
| Thursday | 71°F | Partly Sunny | 0 to 5 mph NNE | 3% |
| Thursday Night | 53°F | Partly Cloudy | 0 to 5 mph NNE | 4% |
| Friday | 72°F | Mostly Sunny | 0 to 5 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Forrest (40.751, -88.410). Updated through the day.
Growing snapshot for Forrest
Last spring frost
Apr 25
First fall frost
Oct 20
Growing season
175 days
Hardiness zone
6a
More local growing data for Forrest: nearby ZIP 61741 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Campus
Chatsworth
Cornell
Cullom
Dwight
Emington
Fairbury
Flanagan
Long Point
Odell
Pontiac
Saunemin
Strawn
Climate data from the nearest NOAA station, Piper City, Il (11.2 mi from Forrest). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.