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Mattoon Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  | |  |  |  |  |  | | | |
| Cloudy | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Showers Likely | Chance of Showers | Windy | Clear | Clear | Clear | Clear | Mostly Clear |
| Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 39°FLo: 4°C | Hi: 59°FHi: 15°C | Lo: 40°FLo: 4°C | Hi: 51°FHi: 11°C | Hi: 59°FHi: 15°C Lo: 29°FLo: -2°C | Hi: 59°FHi: 15°C Lo: 29°FLo: -2°C | Hi: 65°FHi: 18°C Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C Lo: 35°FLo: 2°C | Lo: 41°FLo: 5°C |
| POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 909 AM CDT Tue Oct 13 2026 
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Issued: 1209 PM CDT Tue Oct 13 2026
Key Messages
- A 20% chance of light rain showers exists this evening.
- Widespread rain will develop Thursday afternoon and continue through Friday. NBM probabilistic guidance shows a 40 to 60% probability of 24-hour rainfall accumulations exceeding 0.50 inches.
- Strong northwest wind gusts of 35 to 45 mph and marine gales are expected Friday alongside light rain showers.
- A widespread freeze and frost are expected Friday night into early Saturday morning.
Discussion
... Issued at 1208 PM CDT Tue Oct 13...