Denison Dam Weather Forecast
- 47
- 72
Mostly Sunny
- 54
- 74
Mostly Cloudy
- 58
- 66
Chance Rain Showers
- 65
- 75
Mostly Cloudy
- 67
- 79
Chance Thunderstorms
- 60
- 83
Slight Chance Thunderstorms
- 58
- 79
Chance Thunderstorms
Today 19 Apr Bryan
Sunny. Highs in the lower 70s. Southeast Winds around 5 Mph.
Tonight 19 Apr Bryan
Mostly clear. Lows in the mid 40s. Southeast Winds around 5 Mph.
Denison Dam Temperature Statistics
April Temperature
Sherman/Denison, Grayson County Airport (9.3 miles)
Lowest 5 April, 2026
42.6 °FAverage April
67.4 °FHighest 13 April, 2026
84.2 °F
Climate (2021–Present)
Sherman/Denison, Grayson County Airport (9.3 miles)
Average Low 2021–2026
55.8 °FAverage 2021–2026
64.5 °FAverage High 2021–2026
76.9 °F