Karnak, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Karnak, a village in Massac County, Illinois.
This Afternoon
79°F
Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Partly sunny. High near 79, with temperatures falling to around 74 in the afternoon. South wind around 10 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
7-day forecast for Karnak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Slight Chance Rain Showers | 10 mph S | 22% |
| Tonight | 56°F | Showers And Thunderstorms | 6 to 12 mph S | 99% |
| Wednesday | 69°F | Partly Sunny | 3 to 9 mph WSW | 8% |
| Wednesday Night | 41°F | Partly Cloudy | 2 mph WSW | 0% |
| Thursday | 69°F | Sunny | 0 to 6 mph SW | 0% |
| Thursday Night | 43°F | Partly Cloudy | 1 mph NW | 4% |
| Friday | 63°F | Partly Sunny | 1 to 8 mph NNW | 2% |
| Friday Night | 38°F | Partly Cloudy | 3 mph NNW | 1% |
| Saturday | 58°F | Mostly Sunny | 1 to 5 mph N | 0% |
| Saturday Night | 33°F | Partly Cloudy | 0 mph | 1% |
| Sunday | 62°F | Sunny | 0 to 5 mph WNW | 5% |
| Sunday Night | 33°F | Mostly Clear | 2 mph NW | 6% |
| Monday | 65°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 35°F | Mostly Clear | 2 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Karnak (37.294, -88.976). Updated through the day.
Growing snapshot for Karnak
Last spring frost
Apr 3
First fall frost
Nov 5
Growing season
216 days
Hardiness zone
7a
More local growing data for Karnak: nearby ZIP 62956 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grand Chain Dam 53, Il (8.1 mi from Karnak). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.