Trenton Weather Forecast
- 64
- 89
Rain Showers
- 60
- 74
Rain Showers
- 58
- 80
Mostly Sunny
- 61
- 84
Partly Sunny
- 63
- 87
Partly Sunny
- 65
- 86
Mostly Cloudy
Today 31 Jul Mercer
Mostly sunny with a slight chance of Showers this Morning, then mostly cloudy with Showers and Thunderstorms likely this afternoon. Some Thunderstorms may produce heavy rainfall this afternoon. Locally heavy rainfall possible this afternoon. Not as hot with Highs in the upper 80s. Temperature falling to around 80 this afternoon. East Winds 5 to 10 Mph. Chance of rain 70 percent.
Tonight 31 Jul Mercer
Showers with Thunderstorms likely in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Some Thunderstorms may produce heavy rainfall after midnight. Locally heavy rainfall possible. Cooler with Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 90 percent.
Trenton Temperature Statistics
July Temperature
Trenton, Mercer County Airport (5.6 miles)
Lowest 5 July, 2025
59.6 °FAverage July
78.6 °FHighest 25 July, 2025
97.6 °F
Climate (2020–Present)
Trenton, Mercer County Airport (5.6 miles)
Average Low 2020–2025
46.3 °FAverage 2020–2025
55.4 °FAverage High 2020–2025
64.4 °F