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Patterson Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | |  |  | | | | | | |  |
| Partly Cloudy | Partly Sunny | Partly Cloudy | Sunny | Clear | Mostly Clear | Mostly Clear | Clear | Clear | Sunny | Partly Cloudy | Partly Cloudy |
| Lo: 31°FLo: -1°C | Hi: 45°FHi: 7°C | Lo: 29°FLo: -2°C | Hi: 49°FHi: 9°C | Lo: 25°FLo: -4°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 59°FHi: 15°C | Hi: 61°FHi: 16°C Lo: 35°FLo: 2°C | Hi: 61°FHi: 16°C Lo: 35°FLo: 2°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 337 PM CST Thu Nov 12 2026 
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Issued: 115 PM CST Thu Nov 12 2026
Key Messages
- The first snow flakes of the season are on tap for locations along and northeast of a Bloomington to Mattoon line late tonight into Friday morning. Accumulations will be minor and confined to grassy, elevated surfaces.
- Below normal temperatures will prevail through the weekend with temperatures gradually warming back above normal by the middle to end of next week.
Discussion
... Issued at 115 PM CST Thu Nov 12 2026
Upper air analysis shows a large trough of low pressure centered over th...