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Avery Lake, IL Weather Forecast
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Avery Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | | |  | | |  |  | | | |
| Mostly Clear | Sunny | Mostly Clear | Sunny | Clearing | Sunny | Partly Cloudy | Partly Cloudy | Chance of Showers | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C Lo: 70°FLo: 21°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C |
| POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 502 PM CDT Thu Sep 17 2026 
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Issued: 619 PM CDT Thu Sep 17 2026
Key Messages
- A Heat Advisory remains in effect through Sunday evening for daily heat index values between 103-109 degrees. High temperatures during this period will range from the mid 90s to near 100 degrees.
- There is a 20% chance of an isolated shower or thunderstorm Friday afternoon and evening, mainly north along I-64.
- More scattered rain chances across the entire region arrives on Monday, with a 30-40% chance of showers and thunderstorms peaking Monday afternoon into Monday night.
- Relief from...