National Weather Service Forecast for: Duncan OK
Issued by: National Weather Service Norman, OK
Updated: 6:45 am CDT Jul 5, 2025
 
Today

Today: A slight chance of showers and thunderstorms between 10am and 1pm. Mostly cloudy, with a high near 84. South southeast wind 7 to 10 mph. Chance of precipitation is 20%.
Slight Chance
T-storms

 Tonight

Tonight: Partly cloudy, with a low around 70. Southeast wind 5 to 9 mph becoming light south after midnight.
Partly Cloudy

 Sunday

Sunday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 3 to 8 mph.
Chance
Showers then
Chance
T-storms
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 71. South wind 3 to 7 mph.
Partly Cloudy

 Monday

Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. South wind 3 to 8 mph.
Chance
T-storms

 Monday
Night
Monday Night: Partly cloudy, with a low around 72.
Partly Cloudy

 Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Slight Chance
T-storms

 Tuesday
Night
Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Partly Cloudy
then Slight
Chance
T-storms
 Wednesday

Wednesday: Mostly sunny, with a high near 93.
Mostly Sunny
Hi 84 °F Lo 70 °F Hi 87 °F Lo 71 °F Hi 89 °F Lo 72 °F Hi 91 °F Lo 72 °F Hi 93 °F

 

Today
 
 A slight chance of showers and thunderstorms between 10am and 1pm. Mostly cloudy, with a high near 84. South southeast wind 7 to 10 mph. Chance of precipitation is 20%.
Tonight
 
 Partly cloudy, with a low around 70. Southeast wind 5 to 9 mph becoming light south after midnight.
Sunday
 
 A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 3 to 8 mph.
Sunday Night
 
 Partly cloudy, with a low around 71. South wind 3 to 7 mph.
Monday
 
 A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. South wind 3 to 8 mph.
Monday Night
 
 Partly cloudy, with a low around 72.
Tuesday
 
 A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Wednesday
 
 Mostly sunny, with a high near 93.
Wednesday Night
 
 Mostly clear, with a low around 73.
Thursday
 
 Sunny, with a high near 95.
Thursday Night
 
 Partly cloudy, with a low around 74.
Friday
 
 Mostly sunny, with a high near 95.

 

Forecast from NOAA-NWS for Duncan OK.