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Lusters Lake, IL Weather Forecast
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Lusters Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | |  | | |  | |  | |  |  |
| Partly Cloudy | Chance of T-Storm | Clearing | Partly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Mostly Cloudy | Partly Cloudy |
| Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C Lo: 55°FLo: 13°C |
| POP: 20% | POP: 20% | POP: 40% | POP: 50% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 409 PM CDT Thu Sep 17 2026 
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Issued: 606 PM CDT Thu Sep 17 2026
Key Messages
- High heat and humidity will continue into early this evening over portions of central and southeast IL. A Heat Advisory remains in effect until 7 PM south of a Springfield to Robinson line, where afternoon heat indices will peak near 105 degrees.
- A boundary slowly moving south this afternoon will be the focus of showers and storms into early this evening. Severe weather is not expected but locally heavy rainfall is possible due to potential training of the storms over the same areas. ...