St. Helens, Oregon Weather
Rufous Hummingbirds Arrive. Day 77 of spring. Read this microseason across nine climate regions →
St. Helens weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 3Light Drizzle25%—72°55°—
- ThursdayJun 4Overcast——66°53°-6°
- FridayJun 5Light Drizzle58%0.03″60°50°-6°
- SaturdayJun 6Drizzle84%—57°44°-3°
- SundayJun 7Drizzle11%0.02″68°43°+11°
- MondayJun 8Light Rain56%0.39″58°47°-10°
- TuesdayJun 9Light Drizzle54%0.13″54°48°-4°
Ozone at AQI 30 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 5 by mid-afternoon.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 6 AM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 30 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 5 by mid-afternoon.
- Present
- AQI 30
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 5
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
- 7:04 AM
- Moonset
- 4:00 PM
- In sign
- ♑︎ Capricorn
Rufous Hummingbirds Arrive
St. Helens at a glance
- Today vs. normal: 12°F below the seasonal normal for this latitude
- Last frost: May 21 (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 4, 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.