10-Day Weather Forecast - Duncan, OK

Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. North winds around 5 mph becoming northeast in the afternoon. Chance of rain 20 percent.

Partly cloudy in the evening then becoming mostly cloudy. Humid with lows in the lower 70s. East winds around 5 mph.

Partly sunny with a slight chance of showers and thunderstorms. Humid with highs in the lower 90s. Southeast winds 5 to 10 mph. Chance of rain 20 percent.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 70s. Southeast winds 5 to 10 mph.

Partly sunny. Highs in the lower 90s.

Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent.

Partly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 90s. Chance of rain 20 percent.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 70s.

Mostly sunny. Highs in the lower 90s.

Partly cloudy. Lows in the mid 70s.

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the mid 90s. Chance of rain 20 percent.

Partly cloudy. Lows in the mid 70s.

Mostly sunny. Highs in the mid 90s.

Clear. Low temperature around 74F. Dew point will be around 72F with an average humidity of 80%. Winds will be 8 mph from the SE.

Sunny. High temperature around 89F. Dew point will be around 72F with an average humidity of 68%. Winds will be 8 mph from the S.

Clear. Low temperature around 74F. Dew point will be around 72F with an average humidity of 78%. Winds will be 8 mph from the S.

Sunny. High temperature around 91F. Dew point will be around 72F with an average humidity of 65%. Winds will be 9 mph from the S.

Clear. Low temperature around 75F. Dew point will be around 72F with an average humidity of 72%. Winds will be 10 mph from the S.