Johnston Lake Weather Forecast
- 76
- 101
Hot
- 78
- 102
Hot
- 78
- 103
Hot
- 79
- 103
Hot
- 79
- 103
Hot
- 79
- 104
Hot
Today 26 Jul Young
Sunny, hot with Highs around 100. South Winds 5 to 10 Mph.
Tonight 26 Jul Young
Mostly clear. Lows in the mid 70s. South Winds 5 to 10 Mph.
Johnston Lake Temperature Statistics
July Temperature
Graham, Graham Municipal Airport (8.7 miles)
Lowest 6 July, 2026
65.5 °FAverage July
83.9 °FHighest 22 July, 2026
103.8 °F
Climate (2021–2026)
Graham, Graham Municipal Airport (8.7 miles)
Average Low 2021–2026
53.9 °FAverage 2021–2026
66.1 °FAverage High 2021–2026
78.7 °F