St. Johnsbury, VT Weather & Growing Conditions
This Afternoon
61°F
Sunny
Sunny, with a high near 61. North wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Sunny | 2 mph N | 0% |
| Tonight | 36°F | Mostly Clear | 0 to 5 mph SE | 0% |
| Sunday | 51°F | Light Rain | 1 to 9 mph S | 100% |
| Sunday Night | 42°F | Light Rain Likely then Chance Rain Showers | 2 mph NE | 74% |
| Monday | 59°F | Mostly Sunny | 2 to 10 mph N | 0% |
| Monday Night | 31°F | Mostly Clear | 1 to 8 mph N | 0% |
| Tuesday | 62°F | Sunny | 2 mph NE | 0% |
| Tuesday Night | 37°F | Mostly Clear | 2 mph NE | 0% |
| Wednesday | 65°F | Sunny | 1 mph E | 0% |
| Wednesday Night | 37°F | Partly Cloudy | 1 mph NE | 0% |
| Thursday | 65°F | Mostly Sunny then Slight Chance Rain Showers | 1 mph NE | 15% |
| Thursday Night | 40°F | Slight Chance Rain Showers | 1 mph NE | 23% |
| Friday | 63°F | Chance Rain Showers | 3 mph N | 31% |
| Friday Night | 43°F | Chance Rain Showers | 3 mph N | 31% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Johnsbury, VT
Last spring frost
May 13
First fall frost
Oct 3
Growing season
143 days
Hardiness zone
4b
Explore more for St. Johnsbury, VT: full frost dates · planting calendar · Vermont frost dates
Climate data from the nearest NOAA station, Saint Johnsbury, Vt (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.