Duncan Lake Weather Forecast
- 77
- 102
Hot
- 77
- 102
Hot
- 77
- 102
Hot
- 74
- 103
Hot
- 67
- 96
Hot
- 68
- 94
Sunny
- 71
- 97
Hot
Today 28 Jul Stephens
Mostly sunny. Hot with Highs around 102. South Winds 5 to 10 Mph.
Tonight 28 Jul Stephens
Partly cloudy. Lows in the upper 70s. South Winds 5 to 10 Mph. Heat index Values up to 107 early in the evening.
Duncan Lake Temperature Statistics
July Temperature
Duncan, Halliburton Field Airport (8.7 miles)
Lowest 6 July, 2026
68 °FAverage July
84.2 °FHighest 21 July, 2026
104 °F
Climate (2021–2026)
Duncan, Halliburton Field Airport (8.7 miles)
Average Low 2021–2026
52.7 °FAverage 2021–2026
64 °FAverage High 2021–2026
76 °F