Karnak, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Karnak, a village in Massac County, Illinois.
This Afternoon
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. West southwest wind around 6 mph.
7-day forecast for Karnak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 98°F | Sunny | 6 mph WSW | 1% |
| Tonight | 71°F | Mostly Clear | 2 mph SSW | 0% |
| Sunday | 97°F | Mostly Sunny | 1 to 5 mph SW | 2% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph NNE | 18% |
| Monday | 91°F | Chance Showers And Thunderstorms | 5 mph NE | 26% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 2 to 6 mph NNE | 26% |
| Tuesday | 81°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 9 mph N | 26% |
| Tuesday Night | 58°F | Partly Cloudy | 3 to 9 mph N | 13% |
| Wednesday | 78°F | Mostly Sunny | 7 mph N | 1% |
| Wednesday Night | 56°F | Partly Cloudy | 1 to 7 mph N | 0% |
| Thursday | 79°F | Mostly Sunny | 2 to 6 mph N | 0% |
| Thursday Night | 58°F | Partly Cloudy | 3 mph NNE | 1% |
| Friday | 81°F | Mostly Sunny | 1 to 6 mph NNE | 4% |
| Friday Night | 59°F | Partly Cloudy | 5 mph NNE | 4% |
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 Sep 19, 2026.