Saint Johnsbury, VT Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Johnsbury, VT in one place.
A chance of rain showers between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. South wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Saint Johnsbury, VT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 6:06 PM EDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Saint Johnsbury, VT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 6:06 PM EDT
- Forecast office
- BTV
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Johnsbury
Thursday looks like the warmest upcoming period in Saint Johnsbury at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Monday at about 5 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 6:06 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- BTV
- Radar station
- KCXX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 52. South wind around 2 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 72. Southwest wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Rain showers likely before 8pm. Mostly cloudy, with a low around 54. West wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 76. West wind around 2 mph.
Partly cloudy, with a low around 53. Northwest wind around 1 mph.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. South wind 1 to 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. South wind around 5 mph. Chance of precipitation is 70%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 78. South wind around 3 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am. Mostly cloudy, with a low around 54. West wind around 2 mph. Chance of precipitation is 70%.
Mostly sunny, with a high near 73. Northwest wind around 3 mph.
Partly cloudy, with a low around 50. Northwest wind 0 to 3 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Mostly Sunny then Chance Showers And Thunderstorms
|
74°F |
5 mph
S
|
|
Monday Night
Aug 24
|
Slight Chance Showers And Thunderstorms
|
52°F |
2 mph
S
|
|
Tuesday
Aug 25
|
Showers And Thunderstorms Likely
|
72°F |
2 mph
SW
|
|
Tuesday Night
Aug 25
|
Rain Showers Likely then Mostly Cloudy
|
54°F |
2 mph
W
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
76°F |
2 mph
W
|
|
Wednesday Night
Aug 26
|
Partly Cloudy
|
53°F |
1 mph
NW
|
|
Thursday
Aug 27
|
Mostly Sunny then Chance Showers And Thunderstorms
|
80°F |
1 to 5 mph
S
|
|
Thursday Night
Aug 27
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
61°F |
5 mph
S
|
|
Friday
Aug 28
|
Showers And Thunderstorms Likely
|
78°F |
3 mph
S
|
|
Friday Night
Aug 28
|
Showers And Thunderstorms Likely
|
54°F |
2 mph
W
|
|
Saturday
Aug 29
|
Mostly Sunny
|
73°F |
3 mph
NW
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
50°F |
0 to 3 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Johnsbury.
