Weather World
Round Lake Beach, IL 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Round Lake Beach Weather Forecast
Round Lake Beach, IL Weather Forecast Date: 807 PM CST Tue Mar 03 2026
Weather forecast for Round Lake Beach, IL
Tonight Lo: 31°F Lo: -1°C |
Tonight... Mostly cloudy. Patchy fog after midnight. Lows in the lower 30s. Northeast winds around 5 mph. |
Wed Hi: 45°FHi: 7°C Lo: 39°F Lo: 4°C |
Wednesday... Mostly cloudy. Patchy fog early in the morning. A slight chance of rain showers late. Highs in the mid 40s inland, but only in the lower 40s near the lake. East winds 5 to 10 mph. Chance of precipitation 20%. |
Thu Hi: 49°FHi: 9°C Lo: 40°F Lo: 4°C |
Thursday... Cloudy. Patchy fog in the morning. Showers likely, mainly in the morning. Highs in the upper 40s inland, but only in the lower 40s near the lake. North winds around 5 mph. Chance of precipitation 70%. |
Fri Hi: 69°FHi: 21°C Lo: 50°F Lo: 10°C |
Friday... Showers likely in the morning, then showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 60s inland, but only in the lower 60s near the lake. Chance of precipitation 90%. |
| Sat Hi: 60°FHi: 16°C Lo: 39°F Lo: 4°C |
Saturday... Mostly cloudy. A chance of showers in the morning. Highs around 60. Chance of precipitation 30%. |
Sun Hi: 61°FHi: 16°C Lo: 41°F Lo: 5°C |
Sunday... Partly cloudy in the morning, then clearing. Highs in the lower 60s. |
| Mon Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Monday... Partly cloudy in the morning, then clearing. Highs in the mid 60s. |
Round Lake Beach Radar Loop
Use the map search tool if you want to place a location marker on the radar map...