St. Johnsbury, VT Weather & Growing Conditions
Today
80°F
Sunny
Sunny, with a high near 80. West wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 2 to 6 mph W | 0% |
| Tonight | 57°F | Mostly Clear | 3 mph NW | 0% |
| Wednesday | 84°F | Mostly Sunny | 2 mph SW | 0% |
| Wednesday Night | 63°F | Partly Cloudy | 2 mph S | 5% |
| Thursday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph S | 36% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 1 mph SW | 36% |
| Friday | 84°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 2 mph W | 47% |
| Friday Night | 64°F | Chance Showers And Thunderstorms | 1 mph NW | 47% |
| Saturday | 83°F | Chance Showers And Thunderstorms | 1 mph W | 49% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 1 mph NW | 49% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph W | 18% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 mph SW | 26% |
| Monday | 83°F | Chance Rain Showers | 1 to 5 mph SW | 53% |
| Monday Night | 60°F | Chance Showers And Thunderstorms | 3 mph W | 53% |
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 Aug 4, 2026.