Weather in Thebes, IL
Updated 2026-09-26 10:00 local time · ZIP codes 62990
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
67°9% rain70°9% rain75°9% rain78°9% rain81°9% rain82°9% rain
80°10% rain77°9% rain74°11% rain
71°11% rain69°17% rain
69°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 17%).
It feels like 61°F with winds near 5 mph.
70°F, 9% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 20 mph.
Current temperature is 67°F, wind 5 mph, rain chance up to 17%.
UV index is 2.
Local weather characteristics in Thebes
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Thebes is part of the Midwest weather region. The forecast point is near 37.22°N latitude and 89.46°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Thebes weather today
Overcast and 67°F in Thebes, IL. Today's high is 82°F with a 17% rain chance. Winds are around 5 mph with gusts near 7 mph. Relative humidity is 29%, pressure is 30.14 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Thebes
Sunrise is at 06:49 AM and sunset is at 06:49 PM. Tomorrow's forecast calls for Overcast with a high near 80°F and a low near 64°F. The maximum rain chance is 6%.