Greenville Weather Forecast
- 59
- 80
Rain Showers
- 50
- 70
Partly Sunny
- 52
- 75
Mostly Sunny
- 58
- 80
Partly Sunny
- 62
- 84
Partly Sunny
- 66
- 86
Chance Rain Showers
Today 21 Jul Mercer
Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Humid with Highs in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.
Tonight 21 Jul Mercer
Showers with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Humid with Lows around 60. West Winds 5 to 10 Mph. Chance of rain 90 percent.
Greenville Temperature Statistics
July Temperature
Port Meadville Airport (17.4 miles)
Lowest 12 July, 2026
61 °FAverage July
75.4 °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