Thebes, IL Weather & Growing Conditions
This Afternoon
99°F
Sunny
Sunny. High near 99, with temperatures falling to around 97 in the afternoon. West southwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 99°F | Sunny | 6 mph WSW | 0% |
| Tonight | 73°F | Mostly Clear | 3 mph SW | 0% |
| Sunday | 98°F | Mostly Sunny | 2 to 6 mph WSW | 2% |
| Sunday Night | 71°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph NNE | 22% |
| Monday | 91°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 3 to 7 mph NNE | 35% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 7 mph NNE | 38% |
| Tuesday | 80°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 6 to 10 mph N | 38% |
| Tuesday Night | 60°F | Partly Cloudy | 5 to 10 mph N | 6% |
| Wednesday | 78°F | Mostly Sunny | 8 mph N | 1% |
| Wednesday Night | 58°F | Partly Cloudy | 3 to 8 mph N | 0% |
| Thursday | 79°F | Mostly Sunny | 6 mph N | 1% |
| Thursday Night | 60°F | Partly Cloudy | 5 mph NNE | 1% |
| Friday | 81°F | Mostly Sunny | 2 to 7 mph NNE | 4% |
| Friday Night | 61°F | Partly Cloudy | 6 mph NNE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Thebes, IL
Last spring frost
Apr 5
First fall frost
Oct 25
Growing season
201 days
Hardiness zone
7a
Explore more for Thebes, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Cape Girardeau Muni Ap, Mo (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.