Pinnacle, Montana Weather
Pikas hayfeeding in granite peaks. Day 76 of spring. Read this microseason across nine climate regions →
Pinnacle weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast13%—67°45°—
- ThursdayJun 4Light Drizzle22%0.01″64°52°-3°
- FridayJun 5Overcast——69°45°+5°
- SaturdayJun 6Overcast10%—64°42°-5°
- SundayJun 7Light Snow Shwrs18%0.25″53°39°-11°
- MondayJun 8Light Drizzle16%0.01″63°37°+10°
- TuesdayJun 9Light Drizzle32%—60°46°-3°
Ozone at AQI 41 now. AQI flat over the last 6 hours (within ±3 points). With UV 5.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 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 41 now. With UV 5.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 by mid-afternoon.
- Present
- AQI 41
- UV peak
- 5.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 28
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
- 6:06 AM
- Moonset
- 2:01 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Pinnacle at a glance
- Today vs. normal: 6°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 3, 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 — Pinnacle
SPC has placed Pinnacle 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.