Contoocook Weather Forecast
- 57
- 80
Decreasing Clouds
- 50
- 73
Rain Showers Likely
- 49
- 71
Mostly Sunny
- 53
- 76
Mostly Sunny
- 51
- 75
Mostly Cloudy
- 60
- 74
Chance Rain Showers
- 52
- 77
Slight Chance Thunderstorms
Today 4 Sep Merrimack
Partly sunny. Highs in the upper 70s. Northwest Winds around 10 Mph.
Tonight 4 Sep Merrimack
Partly cloudy in the Evening, then clearing. Lows in the upper 50s. Northwest Winds around 10 Mph in the Evening, becoming light and variable.
Contoocook Temperature Statistics
September Temperature
Concord Municipal Airport (10.6 miles)
Lowest 1 September, 2026
58.6 °FAverage September
65.2 °FHighest 2 September, 2026
72 °F
Climate (2021–2026)
Concord Municipal Airport (10.6 miles)
Average Low 2021–2026
38.2 °FAverage 2021–2026
49.2 °FAverage High 2021–2026
60.2 °F