Keystone Lake Weather Forecast
- 69
- 90
Rain Showers
- 67
- 85
Rain Showers
- 63
- 84
Chance Thunderstorms
- 65
- 88
Slight Chance Thunderstorms
- 67
- 91
Slight Chance Thunderstorms
- 67
- 91
Slight Chance Thunderstorms
Today 12 Aug Westmoreland
Mostly sunny. Near steady temperature in the upper 80s. South Winds around 5 Mph. Heat index Values in the mid 90s.
Tonight 12 Aug Westmoreland
Partly cloudy. Isolated Showers and Thunderstorms after midnight. Humid with Lows in the upper 60s. South Winds around 5 Mph. Chance of rain 20 percent.
Keystone Lake Temperature Statistics
August Temperature
Latrobe / Westmorland (6.2 miles)
Lowest 3 August, 2025
51.8 °FAverage August
66.9 °FHighest 9 August, 2025
86 °F
Climate (2020–Present)
Latrobe / Westmorland (6.2 miles)
Average Low 2020–2025
43.8 °FAverage 2020–2025
51.6 °FAverage High 2020–2025
62.7 °F