Barlow, Oregon Weather
Rufous Hummingbirds Arrive. Day 76 of spring. Read this microseason across nine climate regions →
Barlow weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Overcast19%—72°54°—
- ThursdayJun 4Overcast——69°51°-3°
- FridayJun 5Overcast11%—63°42°-6°
- SaturdayJun 6Heavy Drizzle64%—63°44°0°
- SundayJun 7Overcast——69°42°+6°
- MondayJun 8Drizzle44%0.14″54°47°-15°
- TuesdayJun 9Light Drizzle37%—62°48°+8°
PM2.5/PM10 ratio 0.64 with 8 mph wind — characteristic of long-range haze transport rather than a local source. AQI flat over the last 6 hours (within ±3 points).
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 44 now. With UV 6.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 28 by mid-afternoon.
- Present
- AQI 44
- UV peak
- 6.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 28
PM × Wind × Precip
PM2.5/PM10 ratio 0.64 with 8 mph wind — characteristic of long-range haze transport rather than a local source.
- PM2.5/PM10
- 0.64
- 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
- 6:29 AM
- Moonset
- 2:54 PM
- In sign
- ♑︎ Capricorn
Rufous Hummingbirds Arrive
Barlow at a glance
- Today vs. normal: 69°F — typical for the season
- Last frost: May 18 (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
Peak growing season
As of June 3, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.