Marengo, Ohio Weather
Sun climbs to its northern throne. Day 88 of spring. Read this microseason across nine climate regions →
Marengo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——68°54°—
- TuesdayJun 16Overcast44%—76°53°+8°
- WednesdayJun 17Thunderstorm63%0.06″74°53°-2°
- ThursdayJun 18Thunderstorm89%0.07″74°59°0°
- FridayJun 19Light Drizzle——69°50°-5°
- SaturdayJun 20Overcast10%—68°48°-1°
- SundayJun 21Drizzle35%0.17″62°57°-6°
AQI 23 (Good), driven by PM2.5. AQI down 8 over the last 6 hours (gradual decline). PM2.5 at 5.4 µg/m³, PM10 at 5.5 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 7 PM.
What's driving it
PM × Wind × Precip
PM2.5 at 5.4 µg/m³, PM10 at 5.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.98
- Wind
- breezy
- 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).








































A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:00 AM
- Moonset
- 9:18 PM
- In sign
- ♋︎ Cancer
Sun climbs to its northern throne
Marengo at a glance
- Today vs. normal: 18°F below the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Marengo
- Mon67°54°0%
- Tue76°53°44%
- Wed74°53°63%
- Thu74°59°89%
- Fri69°50°9%
- Sat68°48°10%
- Sun62°57°35%
- Mon69°53°38%
- Tue71°49°29%
- Wed75°52°10%
- Thu80°57°16%
- Fri80°64°39%
- Sat85°68°48%
- Sun87°71°39%
- Mon85°70°46%
- Tue81°62°41%
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 — Marengo
SPC has placed Marengo in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3SLGTSlight Risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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