10-Day Weather Forecast - Duncan, OK

Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the upper 90s. North winds 5 to 10 mph. Chance of rain 20 percent.

Mostly clear. A slight chance of showers after midnight. Humid with lows in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Sunny. Highs in the upper 90s. Northeast winds 5 to 10 mph.

Mostly clear. Lows around 70.

Sunny. Highs in the upper 90s.

Clear. Lows in the lower 70s.

Sunny, hot with highs around 100.

Clear. Lows in the mid 70s.

Sunny, hot with highs 100 to 105.

Clear. Lows in the mid 70s.

Sunny, hot with highs around 100.

Mostly clear. Low temperature around 77F. Dew point will be around 62F with an average humidity of 48%. Winds will be 10 mph from the SE.

Sunny. High temperature around 98F. Dew point will be around 63F with an average humidity of 43%. Winds will be 10 mph from the S.

Clear. Low temperature around 75F. Dew point will be around 62F with an average humidity of 48%. Winds will be 9 mph from the S.

Sunny. High temperature around 98F. Dew point will be around 63F with an average humidity of 43%. Winds will be 9 mph from the S.

Clear. Low temperature around 75F. Dew point will be around 62F with an average humidity of 48%. Winds will be 8 mph from the S.

Sunny. High temperature around 97F. Dew point will be around 64F with an average humidity of 44%. Winds will be 7 mph from the S.

Mostly clear. Low temperature around 73F. Dew point will be around 62F with an average humidity of 51%. Winds will be 7 mph from the SE.