Bull Lake, Montana Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Bull Lake weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast12%—73°52°—
- ThursdayJun 4Drizzle16%0.04″69°56°-4°
- FridayJun 5Overcast——66°50°-3°
- SaturdayJun 6Light Drizzle26%—59°44°-7°
- SundayJun 7Light Snow Shwrs10%0.17″56°37°-3°
- MondayJun 8Light Drizzle22%0.03″66°41°+10°
- TuesdayJun 9Light Drizzle46%0.05″68°49°+2°
PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.73 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust. AQI up 6 over the last 6 hours (gradual rise).
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 42 now. With UV 0.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 7 by mid-afternoon.
- Present
- AQI 42
- UV peak
- 0.2 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 7
PM × Wind × Precip
PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.73 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.73
- 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
- 6:46 AM
- Moonset
- 3:20 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Bull Lake at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: June 4 (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.
SPC Convective Outlook
Storm Prediction Center — Bull Lake
SPC has placed Bull Lake in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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.