Loudon, NH Weather & Growing Conditions
Overnight
43°F
Mostly Clear
Mostly clear, with a low around 43. North wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Clear | 0 mph | 0% |
| Saturday | 64°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 43°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 56°F | Mostly Cloudy then Rain | 0 to 5 mph SE | 91% |
| Sunday Night | 44°F | Rain then Rain Showers Likely | 5 mph NE | 83% |
| Monday | 64°F | Mostly Sunny | 5 mph N | 2% |
| Monday Night | 42°F | Mostly Cloudy | 5 mph N | 0% |
| Tuesday | 60°F | Partly Sunny | 5 mph NE | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Wednesday | 61°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Wednesday Night | 41°F | Mostly Cloudy | 0 to 5 mph NE | 6% |
| Thursday | 59°F | Chance Rain Showers | 5 to 10 mph NE | 31% |
| Thursday Night | 43°F | Chance Rain Showers | 5 to 15 mph NE | 33% |
| Friday | 62°F | Chance Rain Showers | 10 to 15 mph N | 32% |
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 (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.