Groton Weather Forecast
- 22
- 41
Snow Showers
- 28
- 46
Partly Sunny
- 32
- 46
Mostly Cloudy
- 32
- 52
Partly Sunny
- 32
- 53
Partly Sunny
- 35
- 56
Chance Rain Showers
Today 20 Apr Southern Grafton
Partly sunny. Scattered snow Showers, mainly this morning. Highs around 40. Northwest Winds around 10 Mph with Gusts up to 25 Mph. Chance of snow 40 percent.
Tonight 20 Apr Southern Grafton
Mostly clear. Lows in the lower 20s. Northwest Winds around 10 Mph with Gusts up to 20 Mph in the Evening, becoming light and variable.
Groton Temperature Statistics
April Temperature
Plymouth Municipal Airport (6.2 miles)
Lowest 8 April, 2026
20.8 °FAverage April
44.8 °FHighest 17 April, 2026
73.9 °F
Climate (2021–Present)
Plymouth Municipal Airport (6.2 miles)
Average Low 2021–2026
36.3 °FAverage 2021–2026
46.4 °FAverage High 2021–2026
57 °F