St. Martin, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
St. Martin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Partly Cloudy18%—93°74°—
- SundayJul 5Rain43%0.17″88°71°-5°
- MondayJul 6Thunderstorm43%—83°68°-5°
- TuesdayJul 7Overcast20%—79°63°-4°
- WednesdayJul 8Light Drizzle20%—86°65°+7°
- ThursdayJul 9Thunderstorm43%—86°66°0°
- FridayJul 10Light Drizzle56%—79°69°-7°
AQI 55 (Moderate), driven by Ozone. Ozone at AQI 61 now. With UV 5.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 45 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 61 now. With UV 5.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 45 around 1 PM.
- Present
- AQI 61
- UV peak
- 5.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 45
PM × Wind × Precip
PM2.5 at 12.8 µg/m³, PM10 at 14.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 0h 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:29 PM
- Moonset
- 10:41 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
St. Martin at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Martin
- Sat93°74°18%
- Sun88°71°43%
- Mon83°68°43%
- Tue79°63°20%
- Wed86°65°20%
- Thu86°66°43%
- Fri79°69°56%
- Sat83°65°34%
- Sun76°61°27%
- Mon69°55°14%
- Tue74°60°13%
- Wed83°64°26%
- Thu85°66°26%
- Fri83°70°21%
- Sat83°68°32%
- Sun87°70°32%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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