Weather World
South Beloit, IL 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
South Beloit Weather Forecast
South Beloit, IL Weather Forecast Date: 121 AM CDT Thu Sep 17 2026
Weather forecast for South Beloit, IL
Tonight Lo: 60°F Lo: 16°C |
Tonight... A chance of showers after midnight. A chance of thunderstorms. Showers likely late. Near steady temperature in the lower 60s. East winds around 5 mph. Chance of precipitation 70%. |
Thu Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Thursday... Mostly cloudy. Showers likely with a slight chance of thunderstorms early in the morning, then a slight chance of showers late in the morning. Highs in the mid 70s. Northeast winds around 5 mph. Chance of precipitation 60%. |
Fri Hi: 75°FHi: 24°C Lo: 61°F Lo: 16°C |
Friday... Mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 70s. East winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of precipitation 40%. |
| Sat Hi: 79°FHi: 26°C Lo: 60°F Lo: 16°C |
Saturday... Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 90%. |
| Sun Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Sunday... Mostly cloudy with a 40% chance of showers. Highs in the upper 60s. |
| Mon Hi: 65°FHi: 18°C Lo: 50°F Lo: 10°C |
Monday... Mostly cloudy with a 50% chance of showers. Highs in the mid 60s. |
Tue Hi: 65°FHi: 18°C Lo: 51°F Lo: 11°C |
Tuesday... Mostly cloudy. Highs in the mid 60s. |
South Beloit Radar Loop
Use the map search tool if you want to place a location marker on the radar map...