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Mastodon Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
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| Isolated Showers | Chance of Showers | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 61°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C |
| POP: 20% | POP: 20% | POP: 40% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 741 PM CDT Wed Aug 26 2026 
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Issued: 629 PM CDT Wed Aug 26 2026
Key Messages
- Warmer and more humid conditions are expected late this weekend into next week, with a couple chances for thunderstorms.
Discussion
... Issued at 144 PM CDT Wed Aug 26 2026
A cold front extending from the Kankakee River Valley in northwest Indiana to just northwest of Champaign will continue to generate a broken line of thunderstorms over the next hour or so before exiting to the east. Brief instances of large hail and damaging wind remain possible. Farther northwest, low-level mixing a...