Weather in South Beloit, IL
Updated 2026-09-26 11:00 local time · ZIP codes 61080
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
61°14% rain63°13% rain64°12% rain65°12% rain65°11% rain65°12% rain64°14% rain63°18% rain
58°19% rain56°18% rain55°17% rain54°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 19%).
It feels like 55°F with winds near 8 mph.
65°F, 11% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 12 mph.
Current temperature is 61°F, wind 8 mph, rain chance up to 19%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in South Beloit
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
South Beloit is part of the Midwest weather region. The forecast point is near 42.49°N latitude and 89.04°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.
South Beloit weather today
Overcast and 61°F in South Beloit, IL. Today's high is 65°F with a 14% rain chance. Winds are around 8 mph with gusts near 10 mph. Relative humidity is 57%, pressure is 30.21 inHg, and visibility is about 6 miles.
Tonight and tomorrow in South Beloit
Sunrise is at 06:47 AM and sunset is at 06:47 PM. Tomorrow's forecast calls for Sunny with a high near 69°F and a low near 50°F. The maximum rain chance is 7%.