Weather WorldMountain Valley Lake, PA 7-Day Night Weather Forecast
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Mountain Valley Lake, PA Weather Forecast
Mountain Valley Lake, PA Weather Forecast Date: 202 PM EDT Mon Aug 03 2026
The area/counties/county of: Westmoreland, including the cities of: Murrysville, Greensburg, New Kensington, Lower Burrell, Latrobe, and Monessen.or toggle through each period.
This Afternoon... Mostly sunny. Near steady temperature in the upper 70s. Northwest winds 5 to 10 mph.
Tonight... Clear. Patchy fog after midnight. Lows in the mid 50s. North winds 5 to 10 mph, becoming northeast after midnight.
Tuesday... Patchy fog in the morning. Sunny. Highs in the mid 80s. East winds around 5 mph.
Tuesday Night... Mainly clear. Humid with lows in the mid 60s. East winds around 5 mph.
Wednesday... Partly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. Southeast winds around 5 mph. Chance of rain 50%.
Wednesday Night... A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of rain 50%.
Thursday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 80%.
Thursday Night... Mostly cloudy with a chance of thunderstorms. Showers, mainly in the evening. Lows in the upper 60s. Chance of rain 80%.
Friday... Showers likely in the morning, then showers with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 90%.
Friday Night... A chance of thunderstorms. Showers. Lows in the upper 60s. Chance of rain 90%.
Saturday... Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 60%.
Saturday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 60%.
POP = Probability of Precipitation
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