Harrington, Washington Weather
Pikas hayfeeding in granite peaks. Day 78 of spring. Read this microseason across nine climate regions →
Harrington weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Mostly Clear——71°51°—
- FridayJun 5Overcast——68°46°-3°
- SaturdayJun 6Heavy Drizzle—0.02″60°41°-8°
- SundayJun 7Overcast——63°39°+3°
- MondayJun 8Heavy Drizzle13%0.09″62°47°-1°
- TuesdayJun 9Heavy Drizzle25%0.04″56°46°-6°
- WednesdayJun 10Light Drizzle21%0.05″64°46°+8°
AQI 43 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 34 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 by mid-afternoon.
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 34 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 by mid-afternoon.
- Present
- AQI 34
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 6
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
- 7:18 AM
- Moonset
- 4:45 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Harrington at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: May 31 (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 5, 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.
SPC Convective Outlook
Storm Prediction Center — Harrington
SPC has placed Harrington in the General Thunderstorms category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.