Loudon, NH Weather & Growing Conditions
This Afternoon
66°F
Sunny
Sunny, with a high near 66. West wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Sunny | 0 mph | 0% |
| Tonight | 42°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 58°F | Mostly Cloudy then Rain | 0 to 5 mph SE | 92% |
| Sunday Night | 43°F | Rain then Rain Showers Likely | 0 to 5 mph NE | 84% |
| Monday | 65°F | Mostly Sunny | 5 mph N | 3% |
| Monday Night | 41°F | Mostly Cloudy | 0 to 5 mph N | 0% |
| Tuesday | 62°F | Partly Sunny | 5 mph NE | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 62°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 40°F | Mostly Cloudy | 0 to 5 mph NE | 6% |
| Thursday | 60°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Thursday Night | 42°F | Chance Rain Showers | 5 to 15 mph NE | 33% |
| Friday | 63°F | Chance Rain Showers | 10 to 15 mph N | 33% |
| Friday Night | 43°F | Chance Rain Showers | 5 to 15 mph NE | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Loudon, NH
Last spring frost
May 8
First fall frost
Oct 3
Growing season
146 days
Hardiness zone
5b
Explore more for Loudon, NH: full frost dates · planting calendar · New Hampshire frost dates
Climate data from the nearest NOAA station, Concord Muni Ap, Nh (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.