Greenville Weather Forecast
- 54
- 78
Becoming Sunny
- 61
- 84
Mostly Sunny
- 66
- 86
Chance Thunderstorms
- 66
- 85
Rain Showers Likely
- 65
- 83
Rain Showers Likely
- 65
- 84
Chance Thunderstorms
Today 3 Aug Mercer
Mostly cloudy this Morning, then clearing. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.
Tonight 3 Aug Mercer
Clear. Areas of fog after midnight. Lows in the mid 50s. North Winds 5 to 10 Mph in the Evening, becoming light and variable.
Greenville Temperature Statistics
August Temperature
Port Meadville Airport (17.4 miles)
Lowest 1 August, 2026
66.9 °FAverage August
72.8 °FHighest 1 August, 2026
80.1 °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