Montpelier, Idaho Weather
Pikas hayfeeding in granite peaks. Day 78 of spring. Read this microseason across nine climate regions →
Montpelier weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Mostly Clear——79°50°—
- SaturdayJun 6Overcast——81°59°+2°
- SundayJun 7Drizzle23%0.04″61°41°-20°
- MondayJun 8Overcast——74°38°+13°
- TuesdayJun 9Light Showers18%0.55″57°45°-17°
- WednesdayJun 10Light Drizzle44%0.05″57°38°0°
- ThursdayJun 11Light Drizzle26%—64°33°+7°
AQI 43 (Good), driven by Ozone. AQI down 10 over the last 6 hours (steady decline since this morning). Ozone at AQI 33 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 33 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 by mid-afternoon.
- Present
- AQI 33
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 5.0 µg/m³ (AQI 28) with a 0.61 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.61
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).










































The higher the clouds, the finer the weather.
- Moonrise
- 6:34 AM
- Moonset
- 4:30 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Montpelier at a glance
- Today vs. normal: 22°F below the seasonal normal for this latitude
- Last frost: April 30 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 5, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.