Weather WorldThird Gap Trail, PA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Third Gap Trail, PA Weather Forecast
Third Gap Trail, PA Weather Forecast Date: 900 PM EDT Thu Oct 22 2026
The area/counties/county of: Southern Lycoming, including the city of Williamsport.or toggle through each period.
Tonight... Mostly clear this evening, then becoming partly cloudy. Lows in the upper 30s. North winds 5 to 10 mph with gusts up to 20 mph.
Friday... Sunny. Highs in the upper 50s. Northeast winds around 5 mph.
Friday Night... Partly cloudy in the evening, then clearing. Widespread frost after midnight. Lows in the lower 30s. Light and variable winds.
Saturday... Widespread frost in the morning. Sunny. Highs around 60. Light and variable winds, becoming south around 5 mph in the afternoon.
Saturday Night... Clear. Areas of frost after midnight. Lows in the lower 30s. Light and variable winds.
Sunday... Widespread frost with patchy fog in the morning. Sunny. Highs in the lower 60s.
Sunday Night... Clear. Lows in the mid 30s.
Monday... Sunny. Highs in the upper 60s.
Monday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s.
Tuesday... Mostly sunny. Highs in the lower 60s.
Tuesday Night... Partly cloudy. Lows in the upper 30s.
Wednesday... Partly sunny. Highs in the upper 50s.
Wednesday Night... Mostly cloudy. Lows in the lower 40s.
POP = Probability of Precipitation
Third Gap Trail Radar Loop
Use the map search tool if you want to place a location marker on the radar map...