Pioneer Junction, Montana Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Pioneer Junction weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast27%—71°56°—
- FridayJun 5Overcast——70°51°-1°
- SaturdayJun 6Overcast17%—62°46°-8°
- SundayJun 7Overcast13%—59°39°-3°
- MondayJun 8Overcast——75°39°+16°
- TuesdayJun 9Overcast41%—69°52°-6°
- WednesdayJun 10Overcast41%—85°47°+16°
Ozone at AQI 44 — peak already passed at 1 PM under partly cloudy skies. AQI up 9 over the last 6 hours (gradual rise). Levels should ease through evening.
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 44 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 1.8 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 44
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:45 AM
- Moonset
- 3:18 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Pioneer Junction at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: June 5 (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 4, 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.