Octoraro Lake Weather Forecast
- 65
- 83
Rain Showers Likely
- 64
- 83
Slight Chance Thunderstorms
- 65
- 83
Mostly Sunny
- 68
- 85
Partly Sunny
- 69
- 88
Partly Sunny
- 69
- 88
Chance Rain Showers
Today 27 Aug Lancaster
A chance of Showers with a slight chance of Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Some Thunderstorms may be severe with damaging Winds this afternoon. Locally heavy rainfall possible this afternoon. Highs in the mid 80s. South Winds 5 to 10 Mph. Chance of rain 70 percent.
Tonight 27 Aug Lancaster
Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Patchy fog after midnight. Some Thunderstorms may be severe with damaging Winds. Locally heavy rainfall possible in the evening. Humid with Lows in the mid 60s. South Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 70 percent.
Octoraro Lake Temperature Statistics
August Temperature
Chester County Airport (14.3 miles)
Lowest 24 August, 2026
57.4 °FAverage August
73.7 °FHighest 9 August, 2026
87.6 °F
Climate (2021–2026)
Chester County Airport (14.3 miles)
Average Low 2021–2026
45.9 °FAverage 2021–2026
54.4 °FAverage High 2021–2026
62.9 °F