Diamond Lake Weather Forecast
- 45
- 73
Mostly Cloudy
- 40
- 75
Mostly Cloudy
- 42
- 68
Partly Sunny
- 40
- 67
Chance Rain Showers
- 37
- 62
Chance Rain Showers
- 38
- 65
Patchy Fog
- 39
- 68
Mostly Cloudy
Today 9 Sep Northeast Mountains
Partly cloudy. Highs in the 70s.
Tonight 9 Sep Northeast Mountains
Mostly cloudy. A chance of rain Showers overnight. Lows in the mid 40s to mid 50s. Chance of precipitation 20 percent.
Diamond Lake Temperature Statistics
September Temperature
Deer Park, Deer Park Airport (14.9 miles)
Lowest 5 September, 2026
40.6 °FAverage September
58.2 °FHighest 1 September, 2026
81.6 °F
Climate (2021–2026)
Deer Park, Deer Park Airport (14.9 miles)
Average Low 2021–2026
35.7 °FAverage 2021–2026
48.3 °FAverage High 2021–2026
60.1 °F