Dierker Lake, IL Weather Forecast
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Dierker Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Mostly Cloudy | Mostly Cloudy | Chance of T-Storm | Rain | Mostly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 61°FHi: 16°C | Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C Lo: 41°FLo: 5°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C |
| POP: 90% | POP: 90% |
POP = Probability of Precipitation.
Weather Outlook Updated: 107 PM CST Mon Nov 02 2026 

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Issued: 1258 PM CST Mon Nov 2 2026
Key Messages
- Strong southerly winds will gust 30 to 40 mph at times on Tuesday, with a 30 to 50% chance of reaching advisory criteria (gusts of 45 mph or higher) north of I-70.
- Scattered thunderstorms Tuesday afternoon and evening could produce localized damaging wind gusts, even with little or no lightning.
- Widespread rainfall amounts of 0.75 to 1.50 inches are expected Tuesday through Wednesday night, with a 10% chance of localized totals reaching 2.0 to 2.5 inches.
Discussion
... Issued at 1252 ...
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