Sumner, Washington Weather
Fireweed Ignites. Day 15 of summer. Read this microseason across nine climate regions →
Sumner weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——77°57°—
- MondayJul 6Overcast——85°54°+8°
- TuesdayJul 7Overcast——82°50°-3°
- WednesdayJul 8Light Drizzle——73°57°-9°
- ThursdayJul 9Clear——79°46°+6°
- FridayJul 10Clear——81°50°+2°
- SaturdayJul 11Overcast——84°52°+3°
AQI 20 (Good), driven by PM2.5. AQI down 10 over the last 6 hours (gradual decline). PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.90 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.90 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.90
- Wind
- light
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:34 PM
- Moonset
- 11:25 AM
- In sign
- ♓︎ Pisces
Fireweed Ignites
Sumner at a glance
- Today vs. normal: 6°F below the seasonal normal for this latitude
- Last frost: May 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 98390
15-Day Forecast — Sumner
- Sun77°57°0%
- Mon85°54°0%
- Tue82°50°0%
- Wed73°57°8%
- Thu79°46°1%
- Fri81°50°2%
- Sat84°52°6%
- Sun82°48°5%
- Mon89°49°4%
- Tue91°52°3%
- Wed89°55°5%
- Thu93°57°11%
- Fri90°58°3%
- Sat81°54°7%
- Sun89°51°5%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 Sumner
- 98390