Greenville Weather Forecast
- 58
- 81
Rain Showers
- 53
- 72
Rain Showers Likely
- 53
- 70
Slight Chance Rain Showers
- 53
- 76
Partly Sunny
- 59
- 80
Partly Sunny
- 61
- 82
Chance Thunderstorms
Today 22 Aug Mercer
Mostly sunny this Morning, then partly sunny with Showers with Thunderstorms likely this afternoon. Highs around 80. South Winds 5 to 10 Mph. Chance of rain 80 percent.
Tonight 22 Aug Mercer
Considerable cloudiness. Showers with Thunderstorms likely in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the upper 50s. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 90 percent.
Greenville Temperature Statistics
August Temperature
Port Meadville Airport (17.4 miles)
Lowest 4 August, 2026
53.1 °FAverage August
70.7 °FHighest 6 August, 2026
82.9 °F
Climate (2021–2026)
Port Meadville Airport (17.4 miles)
Average Low 2021–2026
42.7 °FAverage 2021–2026
50.9 °FAverage High 2021–2026
59.3 °F