Preston Weather Forecast
- 72
- 84
Mostly Sunny
- 57
- 83
Rain Showers Likely
- 58
- 71
Sunny
- 62
- 85
Mostly Sunny
- 59
- 76
Mostly Sunny
- 65
- 78
Slight Chance Rain Showers
Today 17 Oct Grayson
Sunny. Highs in the mid 80s. South Winds 5 to 10 Mph.
Tonight 17 Oct Grayson
Mostly clear. A 20 percent chance of Showers and Thunderstorms after midnight. Lows in the upper 60s. South Winds 5 to 10 Mph, increasing to 10 to 15 Mph after midnight.
Preston Temperature Statistics
October Temperature
Sherman/Denison, Grayson County Airport (11.2 miles)
Lowest 11 October, 2025
59.9 °FAverage October
74.2 °FHighest 12 October, 2025
90 °F
Climate (2020–Present)
Sherman/Denison, Grayson County Airport (11.2 miles)
Average Low 2020–2025
55.3 °FAverage 2020–2025
64 °FAverage High 2020–2025
76.2 °F