Marengo, Ohio Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Marengo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast40%—92°71°—
- SundayJul 5Light Drizzle31%0.02″87°72°-5°
- MondayJul 6Thunderstorm38%—79°65°-8°
- TuesdayJul 7Light Drizzle17%—77°63°-2°
- WednesdayJul 8Overcast12%—84°63°+7°
- ThursdayJul 9Thunderstorm48%—80°64°-4°
- FridayJul 10Thunderstorm49%—76°69°-4°
AQI 29 (Good), driven by Ozone. AQI down 7 over the last 6 hours (gradual decline). Ozone at AQI 46 now. With UV 5.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 32 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 46 now. With UV 5.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 32 around 1 PM.
- Present
- AQI 46
- UV peak
- 5.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 32
PM × Wind × Precip
PM2.5 at 7.7 µg/m³, PM10 at 8.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- 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
- 11:26 PM
- Moonset
- 10:35 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Marengo at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 43334
16-Day Forecast — Marengo
- Sat92°71°40%
- Sun87°72°31%
- Mon79°65°38%
- Tue77°63°17%
- Wed84°63°12%
- Thu80°64°48%
- Fri76°69°49%
- Sat84°66°38%
- Sun72°60°25%
- Mon62°53°13%
- Tue76°60°14%
- Wed82°64°23%
- Thu84°66°23%
- Fri83°69°19%
- Sat83°68°40%
- Sun86°68°35%
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 — Marengo
SPC has placed Marengo 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 Marengo
- 43334