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Town of Greenville, PAGreenville, PA 7-Day Night Weather Forecast
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Greenville, PA Weather Forecast
Greenville, PA Weather Forecast Date: 202 PM EDT Mon Aug 17 2026
The area/counties/county of: Mercer, including the cities of: Sharon, Hermitage, and Grove City.or toggle through each period.
This Afternoon... Partly cloudy. Near steady temperature in the upper 70s. Northwest winds around 10 mph.
Tonight... Mainly clear. Patchy fog after midnight. Lows in the upper 50s. Northwest winds 5 to 10 mph.
Tuesday... Patchy fog in the morning. Mostly sunny. Highs in the upper 70s. Northwest winds 5 to 10 mph.
Tuesday Night... Partly cloudy. Lows in the lower 60s. West winds around 5 mph, becoming south after midnight.
Wednesday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely in the afternoon. Humid with highs in the upper 70s. Southwest winds 5 to 10 mph. Chance of rain 60%.
Wednesday Night... Mostly cloudy. Showers likely in the evening. Lows in the upper 50s. Chance of rain 60%.
Thursday... Partly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s.
Thursday Night... Mainly clear. Lows in the mid 50s.
Friday... Mostly sunny. Highs in the upper 70s.
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 50%.
Saturday Night... Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 50%.
POP = Probability of Precipitation
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