Newmarket Weather Forecast
- 42
- 65
Increasing Clouds
- 49
- 65
Rain Likely
- 48
- 60
Rain
- 48
- 60
Rain
- 47
- 60
Chance Rain Showers
- 47
- 66
Partly Sunny
Today 24 Sep Interior Rockingham
Mostly sunny. Highs in the mid 60s. Northeast Winds around 10 Mph with Gusts up to 20 Mph.
Tonight 24 Sep Interior Rockingham
Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 40s. Light and variable Winds, becoming north around 10 Mph after midnight.
Newmarket Temperature Statistics
September Temperature
Pease Air Force Base / Portsmouth (5.6 miles)
Lowest 20 September, 2026
42.8 °FAverage September
64.6 °FHighest 10 September, 2026
86.5 °F
Climate (2021–2026)
Pease Air Force Base / Portsmouth (5.6 miles)
Average Low 2021–2026
42.3 °FAverage 2021–2026
50.7 °FAverage High 2021–2026
59.2 °F