Duncan Weather Forecast
- 46
- 77
Mostly Sunny
- 51
- 77
Mostly Sunny
- 55
- 83
Chance Thunderstorms
- 40
- 75
Chance Rain Showers
- 43
- 56
Chance Rain Showers
- 54
- 68
Rain Showers Likely
- 54
- 74
Rain Showers Likely
Today 26 Feb Stephens
Sunny. Highs in the upper 70s. North Winds 10 to 15 Mph.
Tonight 26 Feb Stephens
Mostly clear. Lows in the mid 40s. Northeast Winds 5 to 10 Mph.
Duncan Temperature Statistics
February Temperature
Duncan, Halliburton Field Airport (1.9 miles)
Lowest 1 February, 2026
17.6 °FAverage February
52.8 °FHighest 8 February, 2026
80.6 °F
Climate (2021–Present)
Duncan, Halliburton Field Airport (1.9 miles)
Average Low 2021–2026
52.4 °FAverage 2021–2026
63.5 °FAverage High 2021–2026
75.5 °F