Petroleum, Indiana Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Petroleum weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 3Overcast23%—92°73°—
- SaturdayJul 4Showers38%0.37″88°71°-4°
- SundayJul 5T-storm w/ Hail67%0.02″87°72°-1°
- MondayJul 6Drizzle36%—85°70°-2°
- TuesdayJul 7Light Drizzle15%—81°67°-4°
- WednesdayJul 8Overcast——82°60°+1°
- ThursdayJul 9Light Drizzle30%—81°69°-1°
AQI 79 (Moderate), driven by Ozone. AQI up 42 in the last 6 hours — air quality is degrading. Ozone at AQI 86 — peak already passed at 1 PM under clear 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 86 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 86
- UV peak
- 1.5 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 86
PM × Wind × Precip
PM2.5 at 5.7 µg/m³, PM10 at 6.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.93
- 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).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:11 PM
- Moonset
- 9:38 AM
- In sign
- ♒︎ Aquarius
Cicadas claim the scorching afternoon
Petroleum at a glance
- Today vs. normal: 20°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 46778
Right now in the garden
Peak growing season
As of July 5, 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 — Petroleum
SPC has placed Petroleum in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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 Petroleum
- 46778