Allendale, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Allendale, a village in Wabash County, Illinois.
Overnight
71°F
Partly Cloudy
Partly cloudy, with a low around 71. Southeast wind around 5 mph.
7-day forecast for Allendale
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Partly Cloudy | 5 mph SE | 2% |
| Saturday | 96°F | Sunny then Slight Chance Rain Showers | 3 to 7 mph SSW | 16% |
| Saturday Night | 73°F | Partly Cloudy | 6 mph SSW | 10% |
| Sunday | 95°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph W | 18% |
| Sunday Night | 68°F | Chance Rain Showers | 7 mph NNE | 32% |
| Monday | 84°F | Chance Rain Showers | 7 to 12 mph NE | 46% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 8 to 13 mph NNE | 46% |
| Tuesday | 75°F | Chance Showers And Thunderstorms | 9 to 13 mph NNE | 42% |
| Tuesday Night | 58°F | Mostly Cloudy | 6 to 13 mph NNE | 10% |
| Wednesday | 75°F | Partly Sunny | 6 to 10 mph N | 4% |
| Wednesday Night | 57°F | Partly Cloudy | 3 to 10 mph NNE | 4% |
| Thursday | 76°F | Mostly Sunny | 3 to 9 mph N | 3% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 9 mph NNE | 3% |
| Friday | 76°F | Mostly Sunny | 3 to 9 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Allendale (38.528, -87.710). Updated through the day.
Growing snapshot for Allendale
Last spring frost
Apr 2
First fall frost
Oct 31
Growing season
209 days
Hardiness zone
6b
More local growing data for Allendale: nearby ZIP 62410 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mt Carmel, Il (9 mi from Allendale). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.