Bonanza, Utah Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Bonanza weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Partly Cloudy——89°53°—
- FridayJun 5Partly Cloudy——91°61°+2°
- SaturdayJun 6Overcast——92°63°+1°
- SundayJun 7Overcast——86°65°-6°
- MondayJun 8Overcast——86°62°0°
- TuesdayJun 9Partly Cloudy——89°60°+3°
- WednesdayJun 10Overcast——83°64°-6°
Ozone at AQI 76 now. AQI up 14 over the last 6 hours (gradual rise). With UV 9.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 97 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 76 now. With UV 9.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 97 by mid-afternoon.
- Present
- AQI 76
- UV peak
- 9.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 97
PM × Wind × Precip
PM2.5/PM10 ratio 0.47 with 9 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.47
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- transport
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
- 5:48 AM
- Moonset
- 3:21 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Bonanza at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 16 (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.