Weather in Seneca, IL
Updated 2026-09-26 10:00 local time · ZIP codes 61360

Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
59°15% rain
61°10% rain
65°12% rain
67°9% rain
69°10% rain
69°10% rain
69°10% rain
68°11% rain
66°13% rain
63°14% rain
61°14% rain
60°15% 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 15%).
It feels like 53°F with winds near 8 mph.
69°F, 10% rain chance and 4 mph wind.
Visibility is around 6 mi; gusts may reach 11 mph.
Current temperature is 59°F, wind 8 mph, rain chance up to 15%.
UV index is 2.
Local weather characteristics in Seneca
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Seneca is part of the Midwest weather region. The forecast point is near 41.31°N latitude and 88.61°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.
Seneca weather today
Overcast and 59°F in Seneca, IL. Today's high is 69°F with a 10% rain chance. Winds are around 8 mph with gusts near 11 mph. Relative humidity is 62%, pressure is 30.21 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Seneca
Sunrise is at 06:46 AM and sunset is at 06:45 PM. Tomorrow's forecast calls for Cloudy with a high near 71°F and a low near 52°F. The maximum rain chance is 10%.