Octoraro Lake Weather Forecast
- 47
- 71
Rain Showers
- 43
- 63
Partly Sunny
- 48
- 64
Partly Sunny
- 50
- 67
Slight Chance Thunderstorms
- 52
- 76
Rain Showers Likely
- 43
- 65
Chance Rain Showers
Today 6 May Lancaster
Showers, mainly this morning. Not as warm with Highs in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.
Tonight 6 May Lancaster
Mostly cloudy. Showers likely with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Much cooler with Lows in the upper 40s. Northwest Winds 10 to 15 Mph. Chance of rain 60 percent.
Octoraro Lake Temperature Statistics
May Temperature
Chester County Airport (14.3 miles)
Lowest 1 May, 2026
36.7 °FAverage May
53.3 °FHighest 4 May, 2026
70 °F
Climate (2021–Present)
Chester County Airport (14.3 miles)
Average Low 2021–2026
45.8 °FAverage 2021–2026
54.4 °FAverage High 2021–2026
62.9 °F