Montpelier, ID Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montpelier, a city in Bear Lake County, Idaho.
Tonight
38°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms between midnight and 2am, then a slight chance of showers and thunderstorms. Mostly cloudy. Low around 38, with temperatures rising to around 42 overnight. East northeast wind around 3 mph. Chance of precipitation is 50%.
7-day forecast for Montpelier
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Chance Showers And Thunderstorms | 3 mph ENE | 50% |
| Saturday | 62°F | Slight Chance Showers And Thunderstorms | 2 to 8 mph NW | 45% |
| Saturday Night | 33°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 6 mph NNW | 15% |
| Sunday | 65°F | Mostly Sunny | 1 to 5 mph NNW | 1% |
| Sunday Night | 34°F | Mostly Clear | 1 to 7 mph NNE | 0% |
| Monday | 71°F | Sunny | 3 mph SE | 0% |
| Monday Night | 39°F | Partly Cloudy | 3 mph NNE | 1% |
| Tuesday | 72°F | Mostly Sunny | 3 mph SE | 7% |
| Tuesday Night | 40°F | Slight Chance Showers And Thunderstorms then Slight Chance Light Rain | 3 mph ENE | 17% |
| Wednesday | 73°F | Sunny | 5 mph SSE | 7% |
| Wednesday Night | 39°F | Mostly Clear | 5 mph NNE | 5% |
| Thursday | 75°F | Sunny | 5 mph SE | 4% |
| Thursday Night | 42°F | Partly Cloudy | 3 mph SE | 5% |
| Friday | 75°F | Mostly Sunny | 5 mph SSE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Montpelier (42.326, -111.299). Updated through the day.
Growing snapshot for Montpelier
Last spring frost
Jun 17
First fall frost
Sep 3
Growing season
77 days
Hardiness zone
5a
More local growing data for Montpelier: nearby ZIP 83254 weather · frost dates · planting calendar · Idaho frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bern, Id (7.5 mi from Montpelier). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.