Roslyn, Washington Weather
Peak Hummingbird Wars. Day 16 of summer. Read this microseason across nine climate regions →
Roslyn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Partly Cloudy——85°53°—
- TuesdayJul 7Overcast——79°59°-6°
- WednesdayJul 8Overcast——62°49°-17°
- ThursdayJul 9Overcast——69°45°+7°
- FridayJul 10Partly Cloudy——77°45°+8°
- SaturdayJul 11Overcast——75°48°-2°
- SundayJul 12Overcast——77°40°+2°
AQI 22 (Good), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline). PM2.5 at 5.4 µg/m³ (AQI 30) with a 0.95 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 30 now. With UV 4.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19.
- Present
- AQI 30
- UV peak
- 4.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 19
PM × Wind × Precip
PM2.5 at 5.4 µg/m³ (AQI 30) with a 0.95 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.95
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).








































When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:46 PM
- Moonset
- 12:34 PM
- In sign
- ♈︎ Aries
Peak Hummingbird Wars
Roslyn at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: May 30 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 98941
16-Day Forecast — Roslyn
- Mon85°53°1%
- Tue79°59°0%
- Wed62°49°4%
- Thu69°45°0%
- Fri77°45°1%
- Sat75°48°2%
- Sun77°40°1%
- Mon93°46°1%
- Tue100°62°5%
- Wed97°64°3%
- Thu94°64°4%
- Fri95°59°10%
- Sat95°59°10%
- Sun88°54°0%
- Mon75°49°3%
- Tue77°45°0%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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.
ZIP codes in Roslyn
- 98941
- 98925