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Summitt, OK Weather Forecast
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Summitt Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
 |  | |  | | | |  |  | | | |
| Mostly Clear | Chance of T-Storm | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 75°FLo: 24°C | Hi: 102°FHi: 39°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 70°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C |
| POP: 20% | POP: 20% | POP: 50% | POP: 40% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 553 PM CDT Wed Sep 16 2026 
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Issued: 627 PM CDT Wed Sep 16 2026
Key Messages
Issued at 154 PM CDT Wed Sep 16 2026- Unseasonably hot temperatures continue through the work week. Heat Advisories are in effect Wednesday and Thursday.
- Fire weather concerns will continue during periods of stronger winds, especially on Saturday across southeast Oklahoma.
- Low afternoon shower/storm chances mainly across NW AR through Thursday. Higher rain potential arrives this weekend, along with cooler temperatures.
Aviation
... (00Z TAFS) Issued at 622 PM CDT Wed Sep 16 2026
Outside ...