National Weather Service Forecast for: Duncan OK
Issued by: National Weather Service Norman, OK
Updated: 1:58 pm CST Feb 2, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 36. South wind 6 to 10 mph becoming north after midnight.
Mostly Cloudy

 Tuesday

Tuesday: Sunny, with a high near 61. North wind 8 to 13 mph, with gusts as high as 20 mph.
Sunny

 Tuesday
Night
Tuesday Night: Increasing clouds, with a low around 32. North northeast wind 3 to 6 mph.
Increasing
Clouds
 Wednesday

Wednesday: A 20 percent chance of showers before noon. Mostly sunny, with a high near 53. Light north northeast wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Slight Chance
Showers then
Mostly Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 28. North wind 5 to 8 mph becoming calm in the evening.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 65.
Sunny

 Thursday
Night
Thursday Night: Clear, with a low around 38.
Clear

 Friday

Friday: Sunny, with a high near 71.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 38.
Mostly Clear
Lo 36 °F Hi 61 °F Lo 32 °F Hi 53 °F Lo 28 °F Hi 65 °F Lo 38 °F Hi 71 °F Lo 38 °F

 

Tonight
 
 Mostly cloudy, with a low around 36. South wind 6 to 10 mph becoming north after midnight.
Tuesday
 
 Sunny, with a high near 61. North wind 8 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
 
 Increasing clouds, with a low around 32. North northeast wind 3 to 6 mph.
Wednesday
 
 A 20 percent chance of showers before noon. Mostly sunny, with a high near 53. Light north northeast wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
 
 Mostly clear, with a low around 28. North wind 5 to 8 mph becoming calm in the evening.
Thursday
 
 Sunny, with a high near 65.
Thursday Night
 
 Clear, with a low around 38.
Friday
 
 Sunny, with a high near 71.
Friday Night
 
 Mostly clear, with a low around 38.
Saturday
 
 Sunny, with a high near 71.
Saturday Night
 
 Partly cloudy, with a low around 42.
Sunday
 
 Mostly sunny, with a high near 67.
Sunday Night
 
 Partly cloudy, with a low around 40.
Monday
 
 Partly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Duncan OK.