Greenville Weather Forecast
- 55
- 75
Slight Chance Thunderstorms
- 59
- 81
Mostly Sunny
- 59
- 81
Rain Showers
- 54
- 75
Chance Thunderstorms
- 53
- 72
Partly Sunny
- 56
- 77
Partly Sunny
- 61
- 80
Mostly Cloudy
Today 20 Aug Mercer
Partly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 70s. Northeast Winds around 5 Mph. Chance of rain 20 percent.
Tonight 20 Aug Mercer
Mainly clear. Lows in the mid 50s. Northeast Winds around 5 Mph.
Greenville Temperature Statistics
August Temperature
Port Meadville Airport (17.4 miles)
Lowest 4 August, 2026
53.1 °FAverage August
71 °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