Grafton Weather Forecast
- 51
- 63
Chance Rain Showers
- 50
- 74
Partly Sunny
- 54
- 82
Mostly Sunny
- 56
- 84
Partly Sunny
- 60
- 79
Chance Rain Showers
- 54
- 75
Chance Rain Showers
Today 20 Aug Southern Grafton
Cloudy with a 40 percent chance of Showers. Highs in the lower 60s. Light and variable Winds.
Tonight 20 Aug Southern Grafton
Partly cloudy. A slight chance of Showers in the evening. Lows in the lower 50s. Light and variable Winds. Chance of rain 20 percent.
Grafton Temperature Statistics
August Temperature
Plymouth Municipal Airport (17.4 miles)
Lowest 2 August, 2025
43.9 °FAverage August
69 °FHighest 12 August, 2025
93.7 °F
Climate (2020–Present)
Plymouth Municipal Airport (17.4 miles)
Average Low 2020–2025
36.7 °FAverage 2020–2025
46.7 °FAverage High 2020–2025
57.1 °F