Grayson County Airport Weather Forecast
- 73
- 95
Chance Thunderstorms
- 74
- 91
Slight Chance Thunderstorms
- 76
- 95
Mostly Cloudy
- 76
- 94
Partly Sunny
- 77
- 94
Partly Sunny
- 77
- 95
Partly Sunny
- 75
- 97
Hot
Today 30 Jun Grayson
Sunny with a 20 percent chance of Showers and Thunderstorms. Highs in the mid 90s. South Winds 5 to 10 Mph. Heat index Values up to 105.
Tonight 30 Jun Grayson
Mostly cloudy with a chance of Thunderstorms. A chance of Showers. Lows in the lower 70s. Southeast Winds around 5 Mph, becoming west after midnight. Chance of rain 50 percent.
Grayson County Airport Temperature Statistics
June Temperature
Sherman/Denison, Grayson County Airport (0 miles)
Lowest 1 June, 2025
64.4 °FAverage June
81 °FHighest 27 June, 2025
95 °F
Climate (2020–Present)
Sherman/Denison, Grayson County Airport (0 miles)
Average Low 2020–2025
55.2 °FAverage 2020–2025
63.9 °FAverage High 2020–2025
76.1 °F