McCormick, IL Weather Forecast
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McCormick Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Clear | Sunny | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 50°FLo: 10°C | Hi: 79°FHi: 26°C | Lo: 51°FLo: 11°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 59°FLo: 15°C | Hi: 71°FHi: 22°C Lo: 55°FLo: 13°C |
| POP: 40% | POP: 50% | POP: 30% | POP: 30% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1152 PM CDT Wed Oct 28 2026 

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Issued: 1216 AM CDT Thu Oct 29 2026
Key Messages
- Warm and dry weather still on track the rest of the week.
- Chances for light rain (20-40 percent) return Saturday night into Sunday. Most places will see a tenth of an inch or less.
- Cooler temperatures closer to normal next week with continued daily rain chances. Heavier rain totals will be possible with around a 50 to 60 percent chance of seeing 1 inch of rainfall for the first half of next week.
Discussion
... Issued at 1215 AM CDT Thu Oct 29 2026
A very stable/dry weather pattern will...
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