Lynden, Washington Weather
Solstice Light Crests. Day 88 of spring. Read this microseason across nine climate regions →
Lynden weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——85°63°—
- TuesdayJun 16Overcast——71°53°-14°
- WednesdayJun 17Overcast——73°48°+2°
- ThursdayJun 18Overcast——79°50°+6°
- FridayJun 19Overcast——78°53°-1°
- SaturdayJun 20Partly Cloudy——73°53°-5°
- SundayJun 21Overcast——72°49°-1°
AQI 72 (Moderate), driven by PM2.5. AQI down 23 over the last 6 hours — air quality is improving sharply. PM2.5 at 31.5 µg/m³ (AQI 93) with a 0.84 fine-to-coarse ratio and 1 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
Ozone × UV × Sky
Ozone at AQI 38. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 38
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 31.5 µg/m³ (AQI 93) with a 0.84 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.84
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:01 AM
- Moonset
- 9:50 PM
- In sign
- ♊︎ Gemini
Solstice Light Crests
Lynden at a glance
- Today vs. normal: 64°F — typical for the season
- Last frost: June 9 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — Lynden
- Mon85°63°4%
- Tue71°53°4%
- Wed73°48°0%
- Thu79°50°0%
- Fri78°53°0%
- Sat73°53°1%
- Sun72°49°1%
- Mon78°50°1%
- Tue71°57°1%
- Wed67°54°7%
- Thu55°53°12%
- Fri67°52°20%
- Sat80°50°23%
- Sun81°55°16%
- Mon76°55°14%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 Lynden
- 98264