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Old Five Lake Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  | |  |  | |  | | | | |
| Mostly Sunny | Clearing | Chance of T-Storm | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Hi: 85°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C |
| POP: 40% | POP: 50% | POP: 40% | POP: 50% | POP: 80% | POP: 70% | POP: 70% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 637 AM CDT Sat Sep 12 2026 
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Issued: 556 AM CDT Sat Sep 12 2026
Key Messages
- Temperature Spread Sunday: A stalling cold front creates a sharp temperature split Sunday, ranging from the mid 70s north of the Illinois River to near 90 south of I-70. Light showers or sprinkles (20-30% chance) remain possible along the boundary.
- Midweek Storm Potential: Multiple rounds of thunderstorms arrive Tuesday into Wednesday. There is potential for localized heavy rainfall exceeding 1-2 inches, especially north of Beardstown to Bloomington, along with a potential for severe...