Weather in Walnut, IL
Updated 2026-09-26 10:00 local time · ZIP codes 61376
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
56°16% rain59°15% rain62°14% rain64°13% rain65°12% rain66°12% rain66°12% rain65°14% rain66°16% rain
63°17% rain61°17% rain61°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 17%).
It feels like 50°F with winds near 9 mph.
66°F, 12% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 17 mph.
Current temperature is 56°F, wind 9 mph, rain chance up to 17%.
UV index is 2.
Local weather characteristics in Walnut
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Walnut is part of the Midwest weather region. The forecast point is near 41.56°N latitude and 89.59°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.
Walnut weather today
Overcast and 56°F in Walnut, IL. Today's high is 66°F with a 15% rain chance. Winds are around 9 mph with gusts near 14 mph. Relative humidity is 65%, pressure is 30.20 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Walnut
Sunrise is at 06:50 AM and sunset is at 06:49 PM. Tomorrow's forecast calls for Sunny with a high near 69°F and a low near 54°F. The maximum rain chance is 7%.