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Washington County, PA Weather Forecast
Washington County, PA Weather Forecast Date: 1003 PM EST Mon Mar 02 2026
The area/counties/county of: Washington, including the cities of: Washington and Canonsburg.or toggle through each period.
Rest of Tonight... Mostly cloudy. A slight chance of rain late this evening, then rain. Near steady temperature in the mid 30s. East winds around 5 mph. Chance of rain 90%.
Tuesday... Rain. Highs in the mid 50s. South winds 5 to 10 mph, becoming southwest with gusts up to 20 mph in the afternoon. Chance of rain 90%.
Tuesday Night... Rain. Lows in the mid 40s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming west after midnight. Chance of rain 90%.
Wednesday... A chance of rain in the morning, then rain likely in the afternoon. Highs in the upper 50s. Northeast winds around 5 mph, becoming southeast in the afternoon. Chance of rain 70%.
Wednesday Night... Rain, mild. Near steady temperature in the mid 50s. South winds around 5 mph. Chance of rain 80%.
Thursday... Rain likely. Unseasonably warm with highs around 70. Chance of rain 70%.
Thursday Night... Rain, mainly in the evening. Mild. Lows in the upper 50s. Chance of rain 80%.
Friday... Mostly cloudy with a chance of rain in the morning, then partly sunny in the afternoon. Unseasonably warm with highs around 70. Chance of rain 50%.
Friday Night... Partly cloudy. A chance of rain after midnight. Mild. Lows in the upper 50s. Chance of rain 30%.
Saturday... Partly sunny with a chance of rain in the morning, then mostly cloudy with rain likely in the afternoon. Unseasonably warm with highs in the mid 70s. Chance of rain 70%.
Saturday Night... Rain likely, mainly in the evening. Mild. Lows in the mid 50s. Chance of rain 70%.
Sunday... Mostly cloudy with a 50% chance of rain. Warm with highs in the mid 60s.
Sunday Night... Mostly cloudy with a 50% chance of rain. Mild. Lows in the lower 50s.
POP = Probability of Precipitation
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