St. Martin, Ohio Weather
Sun climbs to its northern throne. Day 86 of spring. Read this microseason across nine climate regions →
St. Martin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Foggy——87°56°—
- SundayJun 14Light Rain74%0.07″80°65°-7°
- MondayJun 15Overcast——70°48°-10°
- TuesdayJun 16Light Drizzle11%—75°56°+5°
- WednesdayJun 17Light Showers46%0.01″79°59°+4°
- ThursdayJun 18Light Showers58%0.85″73°66°-6°
- FridayJun 19Overcast41%—73°61°0°
AQI 27 (Good), driven by PM2.5. AQI down 16 over the last 6 hours — air quality is improving sharply. PM2.5 at 7.9 µg/m³ (AQI 44) with a 0.99 fine-to-coarse ratio and 3 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 7.9 µg/m³ (AQI 44) with a 0.99 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.99
- 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).








































Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 4:20 AM
- Moonset
- —
- In sign
- ♉︎ Taurus
Sun climbs to its northern throne
St. Martin at a glance
- Today vs. normal: 18°F below the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — St. Martin
- Sat87°59°2%
- Sun80°65°74%
- Mon70°48°1%
- Tue75°56°11%
- Wed79°59°46%
- Thu73°66°58%
- Fri73°61°41%
- Sat74°52°21%
- Sun81°58°36%
- Mon75°62°35%
- Tue76°56°23%
- Wed81°59°29%
- Thu84°66°29%
- Fri76°60°35%
- Sat72°54°36%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, 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 — St. Martin
SPC has placed St. Martin in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- 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.
ZIP codes in St. Martin
- 45142
- 45118