Bloomfield, Montana Weather
Pikas hayfeeding in granite peaks. Day 78 of spring. Read this microseason across nine climate regions →
Bloomfield weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Drizzle48%0.04″72°48°—
- FridayJun 5Mostly Clear——82°53°+10°
- SaturdayJun 6Overcast76%—94°60°+12°
- SundayJun 7Overcast76%—78°53°-16°
- MondayJun 8Heavy Drizzle23%—75°50°-3°
- TuesdayJun 9Light Showers19%0.15″82°60°+7°
- WednesdayJun 10Overcast39%—76°61°-6°
AQI 37 (Good), driven by Ozone. AQI up 7 over the last 6 hours (gradual rise). Ozone at AQI 31 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7 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 31 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7 by mid-afternoon.
- Present
- AQI 31
- UV peak
- 0.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 4.6 µg/m³, PM10 at 5.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.85
- Wind
- calm
- Recent rain
- 1h in last 6h
- Pattern
- background
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
- 6:24 AM
- Moonset
- 3:49 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Bloomfield at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: May 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.
SPC Convective Outlook
Storm Prediction Center — Bloomfield
SPC has placed Bloomfield in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3SLGTSlight Risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.