Marengo, Indiana Weather
Thunderheads boil and break at dusk. Day 16 of summer. Read this microseason across nine climate regions →
Marengo weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Overcast20%—85°70°—
- TuesdayJul 7Heavy Showers14%0.37″85°71°0°
- WednesdayJul 8T-storm w/ Hail58%—84°70°-1°
- ThursdayJul 9Thunderstorm32%—89°67°+5°
- FridayJul 10T-storm w/ Hail68%0.51″88°71°-1°
- SaturdayJul 11Light Drizzle51%—87°72°-1°
- SundayJul 12Overcast35%—89°68°+2°
AQI 52 (Moderate), driven by Ozone. AQI up 12 over the last 6 hours (gradual rise). Ozone at AQI 68 — peak already passed at 1 PM under overcast 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 68 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 68
- UV peak
- 6.8 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 68
PM × Wind × Precip
PM2.5 at 15.4 µg/m³ (AQI 63) with a 0.91 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.91
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 12:26 AM
- Moonset
- 1:04 PM
- In sign
- ♈︎ Aries
Thunderheads boil and break at dusk
Marengo at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: April 6 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 47140
16-Day Forecast — Marengo
- Mon85°70°20%
- Tue85°71°14%
- Wed84°70°58%
- Thu89°67°32%
- Fri88°71°68%
- Sat87°72°51%
- Sun89°68°35%
- Mon89°70°10%
- Tue91°68°5%
- Wed94°75°10%
- Thu79°64°15%
- Fri74°57°27%
- Sat78°58°26%
- Sun81°59°26%
- Mon84°62°23%
- Tue88°64°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, 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 includes Marengo in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
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 Marengo
- 47140