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City of Duncan, OKDuncan, OK Weather Forecast
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Duncan Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  | | | |  |  | | |  |  | |
| Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Sunny | Mostly Cloudy | Partly Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 65°FLo: 18°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 91°FHi: 33°C | Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C |
| POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 535 PM CDT Tue Sep 22 2026 
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Issued: 620 PM CDT Tue Sep 22 2026
Key Messages
Updated at 616 PM CDT Tue Sep 22 2026- Temperatures will remain above normal through the period, but not as hot as recent weeks.
- Low chances for precipitation each day across western OK and western north TX through Thursday, increasing and expanding east into the weekend.
Aviation
... (00Z TAFS) Issued at 616 PM CDT Tue Sep 22 2026
VFR conditions continue through midnight across the area. The major forecast question is to what degree we see stratus move in from the northeast, and how low...