Heart Butte, Montana Weather
Pikas hayfeeding in granite peaks. Day 78 of spring. Read this microseason across nine climate regions →
Heart Butte weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Overcast——66°44°—
- SaturdayJun 6Overcast15%—56°45°-10°
- SundayJun 7Overcast21%—53°41°-3°
- MondayJun 8Overcast16%—61°42°+8°
- TuesdayJun 9Light Drizzle35%—62°42°+1°
- WednesdayJun 10Drizzle35%0.17″43°38°-19°
- ThursdayJun 11Overcast60%—61°41°+18°
AQI 40 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 35 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 11 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 35 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 11 by mid-afternoon.
- Present
- AQI 35
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 11
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
- 6:58 AM
- Moonset
- 4:19 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Heart Butte at a glance
- Today vs. normal: 20°F below 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 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.