Wamac, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wamac, a city in Marion County, Illinois.
Overnight
61°F
Clear
Clear, with a low around 61. Wind around 0 mph.
7-day forecast for Wamac
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Clear | 0 mph | 0% |
| Tuesday | 86°F | Patchy Fog then Sunny | 0 mph | 0% |
| Tuesday Night | 65°F | Mostly Clear | 1 mph E | 0% |
| Wednesday | 88°F | Sunny | 1 mph S | 2% |
| Wednesday Night | 70°F | Partly Cloudy then Chance Showers And Thunderstorms | 3 mph S | 31% |
| Thursday | 86°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph SW | 57% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 2 mph S | 56% |
| Friday | 86°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph SW | 56% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 0 mph | 33% |
| Saturday | 88°F | Chance Showers And Thunderstorms | 2 mph SW | 33% |
| Saturday Night | 70°F | Partly Cloudy | 2 mph S | 12% |
| Sunday | 90°F | Sunny | 2 to 6 mph S | 9% |
| Sunday Night | 72°F | Mostly Clear | 6 mph S | 5% |
| Monday | 92°F | Sunny | 3 to 7 mph SW | 6% |
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 Aug 4, 2026.