Castine, Ohio Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Castine weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Mostly Clear——71°53°—
- TuesdayJun 16Overcast37%—78°53°+7°
- WednesdayJun 17Thunderstorm64%0.04″77°55°-1°
- ThursdayJun 18Heavy Showers85%2.1″75°62°-2°
- FridayJun 19Light Drizzle——73°56°-2°
- SaturdayJun 20Overcast——71°50°-2°
- SundayJun 21Light Drizzle36%—77°56°+6°
AQI 29 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 44 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 44 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 4.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 44
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
- 6:11 AM
- Moonset
- 9:23 PM
- In sign
- ♋︎ Cancer
Sun climbs to its northern throne
Castine at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: April 16 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Castine
- Mon71°53°0%
- Tue78°53°37%
- Wed77°55°64%
- Thu75°62°85%
- Fri73°56°9%
- Sat71°50°8%
- Sun77°56°36%
- Mon75°63°42%
- Tue73°61°31%
- Wed77°63°10%
- Thu78°64°11%
- Fri75°59°42%
- Sat74°57°39%
- Sun85°65°26%
- Mon75°67°39%
- Tue74°60°39%
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.
SPC Convective Outlook
Storm Prediction Center — Castine
SPC has placed Castine in the Enhanced Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3ENHEnhanced Risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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.
ZIP codes in Castine
- 45346
- 45304