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City of Washington, PAWashington, PA 7-Day Night Weather Forecast
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Washington, PA Weather Forecast
Washington, PA Weather Forecast Date: 723 AM EDT Wed Sep 16 2026
The area/counties/county of: Washington, including the cities of: Washington and Canonsburg.or toggle through each period.
Today... Partly cloudy. A chance of showers and thunderstorms this afternoon. Unseasonably warm with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 50%.
Tonight... Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Warm with lows in the upper 60s. West winds around 5 mph, becoming south after midnight. Chance of rain 50%.
Thursday... A chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds 5 to 10 mph. Chance of rain 80%.
Thursday Night... Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Warm with lows in the mid 60s. West winds 5 to 10 mph, becoming northwest after midnight. Chance of rain 80%.
Friday... Partly sunny in the morning, then becoming partly cloudy. Humid with highs in the upper 70s. North winds 5 to 10 mph.
Friday Night... Mainly clear. Lows in the upper 50s.
Saturday... Partly cloudy. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 30%.
Saturday Night... Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Warm with lows in the mid 60s. Chance of rain 70%.
Sunday... Showers. Highs in the upper 70s. Chance of rain 90%.
Sunday Night... Considerable cloudiness. Showers likely, mainly in the evening. Lows in the lower 60s. Chance of rain 70%.
Monday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50%.
Monday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 50%.
POP = Probability of Precipitation
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