| NWS Forecast for: Westmoreland County Issued by: National Weather Service Pittsburgh, PA Last Update: 803 PM EDT Sat Sep 19 2026 | |
| Rest Of Tonight: Mostly cloudy. A slight chance of showers and thunderstorms early this evening, then showers with a chance of thunderstorms. Warm with lows in the mid 60s. South winds 5 to 10 mph. Chance of rain 90 percent. Sunday: 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 upper 70s. Southwest winds 10 to 15 mph. Chance of rain near 100 percent. Sunday Night: Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. North winds 5 to 10 mph, becoming northeast with gusts up to 20 mph after midnight. Chance of rain 70 percent. Monday: Mostly cloudy with a 50 percent chance of showers. Highs around 70. Northeast winds 10 to 15 mph. Monday Night: Considerable cloudiness. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. Tuesday: Showers likely. Highs in the mid 60s. Chance of rain 70 percent. Tuesday Night: Showers likely. Lows in the lower 50s. Chance of rain 70 percent. Wednesday: Considerable cloudiness. Showers likely, mainly in the morning. Highs in the lower 60s. Chance of rain 70 percent. Wednesday Night: Considerable cloudiness with a 50 percent chance of showers. Lows in the lower 50s. Thursday: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 60s. Thursday Night: Mostly cloudy. Lows in the upper 40s. Friday: Partly sunny in the morning, then becoming partly cloudy. Highs in the upper 60s. Friday Night: Partly cloudy. Lows in the upper 40s. Saturday: Partly cloudy. Highs around 70. | |
| Zone Forecast: Westmoreland County | |
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