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Sylvan, PA Weather Forecast
Sylvan, PA Weather Forecast Date: 730 PM EDT Wed Oct 07 2026
The area/counties/county of: Franklin, including the city of Chambersburg.or toggle through each period.
Tonight... Mostly clear. Not as cool with lows in the mid 50s. South winds around 5 mph.
Thursday... Sunny. Highs in the mid 70s. West winds 5 to 10 mph.
Thursday Night... Mostly clear. Lows in the upper 40s. Northwest winds around 5 mph in the evening, becoming light and variable.
Friday... Sunny. Highs around 70. Northwest winds around 5 mph.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. North winds around 5 mph in the evening, becoming light and variable.
Saturday... Mostly sunny. Highs in the mid 70s.
Saturday Night... A chance of showers in the evening, then showers after midnight. Mild. Lows in the mid 50s. Chance of rain near 100%.
Sunday... Showers, cooler with highs in the mid 60s. Chance of rain near 100%.
Sunday Night... Showers, mainly in the evening. Unseasonably mild. Lows around 60. Chance of rain 90%.
Columbus Day... Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s.
Monday Night... Mostly cloudy in the evening, then becoming partly cloudy. Mild. Lows in the upper 50s.
Tuesday... Mostly sunny. Highs around 70.
Tuesday Night... Mostly cloudy. Cooler with lows in the mid 40s.
POP = Probability of Precipitation
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