Weather in Saint Elmo, IL
Updated 2026-09-26 12:30 local time · ZIP codes 62458
Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
66°9% rain
69°9% rain73°5% rain74°8% rain73°10% rain71°10% rain69°11% rain
68°11% rain68°11% rain68°10% rain
64°7% rain64°11% 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 11%).
It feels like 62°F with winds near 6 mph.
73°F, 5% rain chance and 4 mph wind.
Visibility is around 6 mi; gusts may reach 15 mph.
Current temperature is 66°F, wind 6 mph, rain chance up to 11%.
UV index is 5. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Saint Elmo
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Saint Elmo is part of the Midwest weather region. The forecast point is near 39.03°N latitude and 88.85°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.
Saint Elmo weather today
Cloudy and 66°F in Saint Elmo, IL. Today's high is 74°F with a 10% rain chance. Winds are around 6 mph with gusts near 7 mph. Relative humidity is 48%, pressure is 30.15 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Saint Elmo
Sunrise is at 06:46 AM and sunset is at 06:46 PM. Tomorrow's forecast calls for Overcast with a high near 76°F and a low near 56°F. The maximum rain chance is 6%.