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Williams Lake, PA Weather Forecast
Williams Lake, PA Weather Forecast Date: 600 PM EDT Fri Sep 18 2026
The area/counties/county of: Sullivan, including the city of Laporte.or toggle through each period.
Tonight... Partly cloudy. Cooler with lows in the upper 40s. Northeast winds 5 to 10 mph with gusts up to 20 mph.
Saturday... Patchy fog in the morning. Mostly sunny. Highs in the upper 60s. Northeast winds around 5 mph, becoming south in the afternoon.
Saturday Night... Mostly cloudy. Showers after midnight. Lows in the mid 50s. South winds 5 to 10 mph. Gusts up to 25 mph after midnight. Chance of rain 90%.
Sunday... Showers. Highs in the mid 60s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100%.
Sunday Night... Mostly cloudy. Showers, mainly in the evening. Lows in the lower 50s. North winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90%.
Monday... Partly sunny. Highs in the lower 60s.
Monday Night... Mostly cloudy. A chance of showers after midnight. Lows in the upper 40s. Chance of rain 40%.
Tuesday... Mostly cloudy with a 50% chance of showers. Highs in the mid 50s.
Tuesday Night... Mostly cloudy with a 50% chance of showers. Lows in the mid 40s.
Wednesday... Mostly cloudy with a 40% chance of showers. Highs in the mid 50s.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the mid 40s. Chance of rain 40%.
Thursday... Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. Highs in the mid 50s. Chance of rain 40%.
Thursday Night... Mostly cloudy with a chance of showers. Lows in the upper 40s. Chance of rain 40%.
POP = Probability of Precipitation
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