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McKnight, PA Weather Forecast
McKnight, PA Weather Forecast Date: 108 AM EDT Sun Sep 20 2026
The area/counties/county of: Allegheny, including the city of Pittsburgh Metro Area.or toggle through each period.
Overnight... Showers likely with a chance of thunderstorms. Warm. Near steady temperature in the mid 60s. South winds 5 to 10 mph. Chance of rain 70%.
Today... Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 70s. West winds 5 to 10 mph. Chance of rain 90%.
Tonight... Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50%.
Monday... Considerable cloudiness with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 60s. Northeast winds 10 to 15 mph. Chance of rain 50%.
Monday Night... Showers likely. Lows in the mid 50s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70%.
Tuesday... Showers likely. Highs in the mid 60s. Chance of rain 70%.
Tuesday Night... Showers. Lows in the lower 50s. Chance of rain 80%.
Wednesday... Showers. Highs in the lower 60s. Chance of rain 80%.
Wednesday Night... Considerable cloudiness. Showers likely, mainly in the evening. Lows in the lower 50s. Chance of rain 70%.
Thursday... Mostly cloudy in the morning, then becoming partly sunny. A 50% chance of showers. Highs in the mid 60s.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the upper 40s.
Friday... Mostly sunny. Highs in the upper 60s.
Friday Night... Mainly clear. Lows in the upper 40s.
POP = Probability of Precipitation
McKnight Radar Loop
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