Crystal Lake Weather Forecast
- 60
- 77
Rain Showers
- 50
- 75
Rain Showers
- 48
- 63
Chance Rain Showers
- 41
- 62
Partly Sunny
- 43
- 61
Chance Rain Showers
Today 16 May Sullivan
Patchy fog this morning. Mostly cloudy with Showers with a chance of Thunderstorms this Morning, then partly sunny with a chance of Showers with a slight chance of Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds and small hail this morning. Highs in the upper 70s. Southwest Winds 5 to 10 Mph. Chance of rain 80 percent.
Tonight 16 May Sullivan
Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Lows around 60. Southwest Winds around 5 Mph. Chance of rain 50 percent.
Crystal Lake Temperature Statistics
May Temperature
Williamsport - Lycoming County Airport (14.3 miles)
Lowest 12 May, 2025
42.7 °FAverage May
61.9 °FHighest 2 May, 2025
81.6 °F
Climate (2020–Present)
Williamsport - Lycoming County Airport (14.3 miles)
Average Low 2020–2025
44 °FAverage 2020–2025
53.1 °FAverage High 2020–2025
63.4 °F