Opdyke, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Opdyke, a community in Jefferson County, Illinois.
Today
63°F
Mostly Cloudy
Mostly cloudy. High near 63, with temperatures falling to around 61 in the afternoon. West southwest wind 7 to 13 mph.
7-day forecast for Opdyke
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Mostly Cloudy | 7 to 13 mph WSW | 12% |
| Tonight | 44°F | Partly Cloudy | 1 to 5 mph WSW | 0% |
| Thursday | 67°F | Sunny | 3 to 10 mph WSW | 0% |
| Thursday Night | 45°F | Partly Cloudy | 2 mph WNW | 0% |
| Friday | 60°F | Partly Sunny | 3 to 12 mph NNW | 1% |
| Friday Night | 36°F | Partly Cloudy | 2 to 8 mph NNW | 0% |
| Saturday | 57°F | Mostly Sunny | 2 to 6 mph NNW | 0% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph NNW | 0% |
| Sunday | 60°F | Sunny | 0 to 8 mph NW | 0% |
| Sunday Night | 34°F | Clear | 2 mph WNW | 1% |
| Monday | 65°F | Sunny | 0 to 6 mph WSW | 0% |
| Monday Night | 39°F | Clear | 2 mph SW | 1% |
| Tuesday | 69°F | Sunny | 2 to 6 mph W | 1% |
| Tuesday Night | 41°F | Mostly Clear | 1 mph NNW | 1% |
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 Nov 4, 2026.