Hallmark Lake Weather Forecast
- 75
- 97
Mostly Sunny
- 75
- 97
Mostly Sunny
- 74
- 95
Mostly Sunny
- 74
- 95
Mostly Sunny
- 74
- 95
Mostly Sunny
- 74
- 94
Mostly Sunny
Today 7 Sep Henderson
Sunny, hot with Highs in the upper 90s. Southeast Winds around 5 Mph. Heat index Values up to 106.
Tonight 7 Sep Henderson
Mostly clear. Humid with Lows in the mid 70s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.
Hallmark Lake Temperature Statistics
September Temperature
Athens Municipal Airport (9.3 miles)
Lowest 4 September, 2026
71.6 °FAverage September
82.5 °FHighest 1 September, 2026
98.6 °F
Climate (2021–2026)
Athens Municipal Airport (9.3 miles)
Average Low 2021–2026
55.9 °FAverage 2021–2026
66.4 °FAverage High 2021–2026
77.5 °F