York Harbor, Maine Weather
Solstice approaches — longest light. Day 88 of spring. Read this microseason across nine climate regions →
York Harbor weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Drizzle61%0.02″77°64°—
- TuesdayJun 16Overcast——73°56°-4°
- WednesdayJun 17Overcast——71°56°-2°
- ThursdayJun 18Heavy Drizzle61%0.09″76°59°+5°
- FridayJun 19Overcast34%—79°62°+3°
- SaturdayJun 20Partly Cloudy——71°58°-8°
- SundayJun 21Drizzle18%0.08″72°53°+1°
AQI 53 (Moderate), driven by Ozone. AQI down 16 over the last 6 hours — air quality is improving sharply. Ozone at AQI 49 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 22 around 1 PM.
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 49 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 22 around 1 PM.
- Present
- AQI 49
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 22
PM × Wind × Precip
PM2.5 at 5.6 µg/m³, PM10 at 6.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- Wind
- light
- Recent rain
- 1h in last 6h
- Pattern
- background
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
- 4:57 AM
- Moonset
- 8:40 PM
- In sign
- ♊︎ Gemini
Solstice approaches — longest light
York Harbor at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: May 5 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
15-Day Forecast — York Harbor
- Mon77°64°61%
- Tue73°56°0%
- Wed71°56°5%
- Thu76°59°61%
- Fri79°62°34%
- Sat71°58°9%
- Sun72°53°18%
- Mon65°51°22%
- Tue76°54°22%
- Wed73°53°20%
- Thu68°57°22%
- Fri78°59°42%
- Sat78°55°43%
- Sun71°55°30%
- Mon63°59°29%
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 York Harbor
- 03909
- 03911