Weather StoryAlmanac, microseasons, and the day's weather story.

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

Petroleum, IN
Saturday, July 4 at 8:57 PM
91
°
Partly Cloudy
Feels like
96°
Humidity
57%
Wind
10 mph
Sunrise
2:14 AM
Sunset
5:15 PM
Petroleum, IN
Hour by hour · 24h
24-Hour ForecastPetroleum, IN: 24-hour forecast. Temperatures range from 71 to 92 degrees Fahrenheit with a 38% chance of precipitation at 5 PM.
L 71°H 92°
Petroleum, IN
7-day forecast
  1. Today
    Jul 3
    Overcast
    23%
    92°73°
  2. Saturday
    Jul 4
    Showers
    38%
    0.37″
    88°71°-4°
  3. Sunday
    Jul 5
    T-storm w/ Hail
    67%
    0.02″
    87°72°-1°
  4. Monday
    Jul 6
    Drizzle
    36%
    85°70°-2°
  5. Tuesday
    Jul 7
    Light Drizzle
    15%
    81°67°-4°
  6. Wednesday
    Jul 8
    Overcast
    82°60°+1°
  7. Thursday
    Jul 9
    Light Drizzle
    30%
    81°69°-1°
Petroleum, IN
Anemometer · 24h winds · from true
NESW
From · True
WSW
242° · veering 5°
Direction
WSW
242°
Sustained
10
mph
Gust
17
mph
Peak 24h
18
avg 7
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 7 · pk 18 @ 5:00p
0102030MPHB1B2B3B4B5B6B7-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 284SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 5° from the wsw.
Petroleum, IN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
986.0
-1.1 mb in 3h · falling · 29.12 inHg
Now
986.0
mb
3h
-1.1
mb
12h
-1.2
mb
24h
-1.0
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 986989
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW989.0986.0986.0
−24h−18h−12h−6hnow
Deep low still deepening — rough seas, strong wind, persistent rain.
Petroleum, IN
Air quality
79
AQI
Moderate
+42 in 6h

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.

PM 2.5Good
5.7μg/m³
PM 10Good
6μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
129μg/m³
UV IndexLow
1.9

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
Petroleum, IN
Sky cover · visibility · 24h
Cloud cover
58%
PARTLY CLOUDY
100%0%−24h−18h−12h−6hnow

Visibility
79.3mi
UNLIMITED
84 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
00:57 UTC · Petroleum, IN · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
00:57 UTC · Petroleum, IN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Petroleum, IN
Satellite · infrared · animated
Petroleum, IN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Petroleum, IN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:42 AM
Sunrise
2:14 AM
Daylight
15h 01m
Sunset
5:15 PM
Civil dusk
9:49 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Petroleum, IN
The moon
Waning Gibbous
86% illuminated
Moonrise
11:11 PM
Moonset
9:38 AM
In sign
♒︎ Aquarius
Petroleum, IN
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 150% of the yearDec 31

Read this microseason across nine climate regions →

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

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.