Wamac, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wamac, a city in Marion County, Illinois.
Overnight
58°F
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a low around 58. Southwest wind around 8 mph. Chance of precipitation is 20%.
7-day forecast for Wamac
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Slight Chance Light Rain | 8 mph SW | 17% |
| Wednesday | 62°F | Slight Chance Drizzle then Mostly Cloudy | 7 to 14 mph W | 16% |
| Wednesday Night | 43°F | Partly Cloudy | 5 mph SW | 0% |
| Thursday | 66°F | Sunny | 5 to 12 mph W | 0% |
| Thursday Night | 45°F | Partly Cloudy | 3 mph NW | 1% |
| Friday | 58°F | Partly Sunny | 3 to 13 mph NW | 1% |
| Friday Night | 36°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Saturday | 56°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 1 mph NW | 0% |
| Sunday | 61°F | Sunny | 0 to 7 mph NW | 1% |
| Sunday Night | 34°F | Clear | 2 mph NW | 1% |
| Monday | 65°F | Sunny | 0 to 6 mph SW | 0% |
| Monday Night | 38°F | Clear | 2 mph SW | 1% |
| Tuesday | 68°F | Sunny | 1 to 5 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Wamac (38.491, -89.148). Updated through the day.
Growing snapshot for Wamac
Last spring frost
Apr 9
First fall frost
Oct 24
Growing season
196 days
Hardiness zone
6b
More local growing data for Wamac: nearby ZIP 62801 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Iuka 12 Sw, Il (9.3 mi from Wamac). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.