Opdyke, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Opdyke, a community in Jefferson County, Illinois.
Overnight
71°F
Mostly Clear
Mostly clear, with a low around 71. South southeast wind around 1 mph.
7-day forecast for Opdyke
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Mostly Clear | 1 mph SSE | 3% |
| Saturday | 98°F | Sunny | 1 to 8 mph SW | 5% |
| Saturday Night | 72°F | Partly Cloudy | 1 to 5 mph SSW | 2% |
| Sunday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 9 mph W | 16% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph NNE | 31% |
| Monday | 86°F | Chance Showers And Thunderstorms | 3 to 12 mph NNE | 52% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 6 to 13 mph NNE | 52% |
| Tuesday | 75°F | Chance Showers And Thunderstorms | 8 to 13 mph NNE | 33% |
| Tuesday Night | 55°F | Mostly Cloudy | 5 to 13 mph NNE | 7% |
| Wednesday | 76°F | Mostly Sunny | 6 to 10 mph N | 3% |
| Wednesday Night | 55°F | Partly Cloudy | 2 to 10 mph NNE | 2% |
| Thursday | 77°F | Mostly Sunny | 2 to 9 mph NNE | 2% |
| Thursday Night | 57°F | Partly Cloudy | 2 to 8 mph NNE | 2% |
| Friday | 77°F | Mostly Sunny | 3 to 9 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Opdyke (38.258, -88.790). Updated through the day.
Growing snapshot for Opdyke
Last spring frost
Apr 11
First fall frost
Oct 22
Growing season
193 days
Hardiness zone
6b
More local growing data for Opdyke: nearby ZIP 62872 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mt Vernon 3 Ne, Il (6 mi from Opdyke). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.