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Addison, PA 7-Day Night Weather Forecast
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Addison, PA Weather Forecast
Addison, PA Weather Forecast Date: 900 PM EDT Thu Sep 17 2026
The area/counties/county of: Somerset, including the city of Somerset.or toggle through each period.
Tonight... A slight chance of thunderstorms this evening. Mostly cloudy with a slight chance of showers. Patchy fog this evening. Areas of fog after midnight. Lows in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 20%.
Friday... Patchy fog in the morning. Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then mostly sunny in the afternoon. Humid with highs in the lower 70s. North winds around 5 mph. Chance of rain 20%.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. Patchy fog. Cooler with lows in the mid 50s. North winds around 5 mph, becoming east after midnight.
Saturday... Partly sunny. Highs around 70. Southeast winds 5 to 10 mph.
Saturday Night... Mostly cloudy. A chance of showers after midnight. Lows around 60. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50%.
Sunday... Showers. A chance of thunderstorms in the afternoon. Humid with highs in the lower 70s. Chance of rain 90%.
Sunday Night... Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the upper 50s. Chance of rain 90%.
Monday... Mostly cloudy with a chance of showers. Highs in the mid 60s. Chance of rain 50%.
Monday Night... Showers likely. Lows in the mid 50s. Chance of rain 70%.
Tuesday... Showers likely. Highs in the upper 50s. Chance of rain 70%.
Tuesday Night... Showers likely. Lows in the upper 40s. Chance of rain 70%.
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. A 50% chance of showers. Highs in the mid 50s.
Wednesday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 40s.
POP = Probability of Precipitation
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