NWS Forecast for Duncan OK

National Weather Service Forecast for: Duncan OK
Issued by: National Weather Service Norman, OK

Updated: 4:12 am CST Dec 22, 2025

Today Becoming Sunny	Tonight Mostly Clear	Tuesday Sunny	Tuesday Night Mostly Clear	Wednesday Mostly Sunny	Wednesday Night Partly Cloudy	Christmas Day Mostly Sunny	Thursday Night Mostly Clear	Friday Sunny
Hi 71 °F	Lo 53 °F	Hi 76 °F	Lo 57 °F	Hi 77 °F	Lo 57 °F	Hi 79 °F	Lo 55 °F	Hi 79 °F

Today	Partly sunny, then gradually becoming sunny, with a high near 71. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Tonight	Mostly clear, with a low around 53. South wind around 9 mph.
Tuesday	Sunny, with a high near 76. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday Night	Mostly clear, with a low around 57. South wind around 9 mph.
Wednesday	Mostly sunny, with a high near 77. South southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Wednesday Night	Partly cloudy, with a low around 57.
Christmas Day	Mostly sunny, with a high near 79.
Thursday Night	Mostly clear, with a low around 55.
Friday	Sunny, with a high near 79.
Friday Night	Partly cloudy, with a low around 54.
Saturday	Mostly sunny, with a high near 77.
Saturday Night	Mostly cloudy, with a low around 45.
Sunday	Mostly sunny, with a high near 60.

Forecast from NOAA-NWS for Duncan OK.