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Marathon Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY |
 |  | | |  |  |  |  | | | | |
| Clear | Sunny | Clear | Mostly Sunny | Chance of T-Storm | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Clearing | Partly Cloudy | Partly Cloudy |
| Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C |
| POP: 20% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 405 PM EDT Tue Sep 01 2026 
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Instant definitions for any meteorological term.
Issued: 809 PM EDT Tue Sep 1 2026
Key Messages
1) Hot conditions will occur for the next several days.
2) Strong to severe storms will be possible on Thursday and Friday with thunderstorm chances continuing into the weekend as well.
Discussion
... KEY MESSAGE 1) Hot conditions are expected the next several days. Continued the heat advisory through Thursday. There is the potential that some areas south of Dayton to Columbus will reach criteria on Friday, however with this being further out in time and with convective coverage uncerta...