Arimo, Idaho Weather
Pikas hayfeeding in granite peaks. Day 76 of spring. Read this microseason across nine climate regions →
Arimo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast——86°45°—
- ThursdayJun 4Overcast——78°56°-8°
- FridayJun 5Clear——82°49°+4°
- SaturdayJun 6Overcast——87°55°+5°
- SundayJun 7Light Drizzle——70°51°-17°
- MondayJun 8Overcast——74°37°+4°
- TuesdayJun 9Light Drizzle—0.01″62°51°-12°
Ozone at AQI 500 now. AQI flat over the last 6 hours (within ±3 points). With UV 7.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 500 by mid-afternoon.
AVOID OUTDOORS Avoid outdoor exertion. Keep windows closed; use HEPA filtration indoors if available.
What's driving it
Ozone × UV × Sky
Ozone at AQI 500 now. With UV 7.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 500 by mid-afternoon.
- Present
- AQI 500
- UV peak
- 7.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 500
PM × Wind × Precip
PM2.5/PM10 ratio 0.55 with 5 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.55
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:33 AM
- Moonset
- 2:21 PM
- In sign
- ♑︎ Capricorn
Pikas hayfeeding in granite peaks
Arimo at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: May 1 (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.