Newmarket, NH Weather & Growing Conditions
Today
65°F
Sunny
Sunny, with a high near 65. East wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 65°F | Sunny | 0 to 5 mph E | 0% |
| Tonight | 44°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Sunday | 61°F | Mostly Cloudy then Rain | 0 to 5 mph SE | 88% |
| Sunday Night | 45°F | Rain | 0 to 5 mph NE | 86% |
| Monday | 67°F | Mostly Sunny | 5 mph N | 6% |
| Monday Night | 44°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 61°F | Partly Sunny | 5 mph NE | 0% |
| Tuesday Night | 43°F | Mostly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 62°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 5 mph NE | 15% |
| Thursday | 61°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Thursday Night | 44°F | Chance Rain Showers | 5 to 15 mph NE | 33% |
| Friday | 62°F | Chance Rain Showers | 10 to 15 mph N | 33% |
| Friday Night | 45°F | Chance Rain Showers | 10 to 15 mph NE | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Newmarket, NH
Last spring frost
May 7
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
6a
Explore more for Newmarket, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Durham 2 Ssw, Nh (2.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.