Weather WorldLeeper Lake, IL Weather Forecast
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Leeper Lake Weather Forecast
| REST OF TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  | | |  | |  | | |  | |
| Mostly Cloudy | Partly Cloudy | Sunny | Partly Cloudy | Sunny | Clear | Sunny | Chance of Showers | Showers | Showers | Chance of Showers | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Hi: 65°FHi: 18°C Lo: 50°FLo: 10°C |
| POP: 50% | POP: 60% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1037 AM CDT Sat Oct 10 2026 
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Issued: 950 AM CDT Sat Oct 10 2026
Key Messages
- The remnants of Hurricane Isaias are expected to pass mostly southeast of IL this weekend. However, there is a 30 to 60 percent chance for light rain under a quarter inch from near I-70 southeastward tonight.
- Near record warm temperatures are expected Monday with highs from the upper 80s to lower 90s.
- A cold front Tuesday will bring a slight chance for showers and thunderstorms along with a trend toward cooler temperatures.
- Several chances for rain are possible Tuesday night through ...