Williamstown Weather Forecast
- 33
- 66
Becoming Sunny
- 31
- 64
Mostly Sunny
- 43
- 70
Partly Sunny
- 54
- 75
Chance Rain Showers
- 53
- 74
Chance Rain Showers
- 46
- 69
Slight Chance Rain Showers
Today 19 Sep Orange
Partly sunny this Morning, then clearing. Highs in the mid 60s. Northwest Winds around 10 Mph.
Tonight 19 Sep Orange
Clear. Lows in the mid 30s. Northwest Winds around 10 Mph until Midnight, becoming light and variable.
Williamstown Temperature Statistics
September Temperature
Barre / Montpelier, Knapp State Airport (5.6 miles)
Lowest 9 September, 2025
39 °FAverage September
58.5 °FHighest 4 September, 2025
80.1 °F
Climate (2020–Present)
Barre / Montpelier, Knapp State Airport (5.6 miles)
Average Low 2020–2025
36.8 °FAverage 2020–2025
46.2 °FAverage High 2020–2025
55.7 °F