Plains, Montana Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Plains weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast19%—74°57°—
- FridayJun 5Overcast——72°52°-2°
- SaturdayJun 6Overcast——64°46°-8°
- SundayJun 7Overcast10%—62°40°-2°
- MondayJun 8Overcast10%—68°43°+6°
- TuesdayJun 9Light Drizzle42%0.04″70°50°+2°
- WednesdayJun 10Light Drizzle47%0.01″58°52°-12°
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.65 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.65 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.65
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:39 AM
- Moonset
- 3:19 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Plains at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: May 31 (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.