Greenville Weather Forecast
- 49
- 69
Becoming Sunny
- 51
- 75
Mostly Sunny
- 59
- 80
Partly Sunny
- 62
- 83
Partly Sunny
- 63
- 83
Chance Thunderstorms
- 63
- 82
Chance Thunderstorms
Today 22 Jul Mercer
Partly sunny. A slight chance of Showers early. Unseasonably cool with Highs in the upper 60s. Northwest Winds around 10 Mph. Chance of rain 20 percent.
Tonight 22 Jul Mercer
Mainly clear. Cool with Lows in the upper 40s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.
Greenville Temperature Statistics
July Temperature
Port Meadville Airport (17.4 miles)
Lowest 20 July, 2026
55 °FAverage July
74.5 °FHighest 1 July, 2026
91 °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