Weather in Belknap, IL
Updated 2026-09-26 09:00 local time · ZIP codes 62908

Partly Cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
65°5% rain
69°9% rain
71°9% rain
72°9% rain
75°9% rain
76°9% rain
77°8% rain
77°9% rain
75°9% rain
72°9% rain
70°10% 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 10%).
It feels like 59°F with winds near 6 mph.
71°F, 9% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 16 mph.
Current temperature is 65°F, wind 6 mph, rain chance up to 10%.
UV index is 0.
Local weather characteristics in Belknap
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Belknap is part of the Midwest weather region. The forecast point is near 37.33°N latitude and 88.94°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.
Belknap weather today
Partly Cloudy and 65°F in Belknap, IL. Today's high is 77°F with a 8% rain chance. Winds are around 6 mph with gusts near 8 mph. Relative humidity is 36%, pressure is 30.13 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Belknap
Sunrise is at 06:47 AM and sunset is at 06:47 PM. Tomorrow's forecast calls for Overcast with a high near 80°F and a low near 61°F. The maximum rain chance is 20%.