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As of 22:16 CDT

Weather in Petrolia, IL

52°Current weather

Petrolia, Wednesday, 21 October, 22:16

Clear. Feels like 51°. High 75°, low 43°.

Pressure30.24 inHg
Wind0 mph N
Humidity87%
Visibility6.2 mi
Dew point47°
Thu, 2275° / 46°0Clear
75 °Clear

Petrolia, Thursday, 22 October

Clear. High 75°, low 46°.

Pressure30.27 inHg
Wind4.7 mph NE
Humidity36%
Visibility6.2 mi
Dew point43°
Fri, 2372° / 44°0Clear
72 °Clear

Petrolia, Friday, 23 October

Clear. High 72°, low 44°.

Pressure30.33 inHg
Wind5.7 mph SE
Humidity44%
Visibility6.2 mi
Dew point46°
Sat, 2472° / 49°0Overcast
72 °Overcast

Petrolia, Saturday, 24 October

Overcast. High 72°, low 49°.

Pressure30.39 inHg
Wind4.1 mph SE
Humidity46%
Visibility6.2 mi
Dew point47°
Sun, 2574° / 48°0Overcast
74 °Overcast

Petrolia, Sunday, 25 October

Overcast. High 74°, low 48°.

Pressure30.39 inHg
Wind1.8 mph SE
Humidity45%
Visibility6.2 mi
Dew point46°
Mon, 2673° / 49°0Overcast
73 °Overcast

Petrolia, Monday, 26 October

Overcast. High 73°, low 49°.

Pressure30.33 inHg
Wind4 mph E
Humidity41%
Visibility—
Dew point44°
Tue, 2772° / 49°0Overcast
72 °Overcast

Petrolia, Tuesday, 27 October

Overcast. High 72°, low 49°.

Pressure30.21 inHg
Wind6.3 mph SW
Humidity38%
Visibility—
Dew point42°
Wed, 2862° / 48°0Overcast
62 °Overcast

Petrolia, Wednesday, 28 October

Overcast. High 62°, low 48°.

Pressure30.21 inHg
Wind14.4 mph NW
Humidity62%
Visibility—
Dew point41°
Thu, 2960° / 46°0.15Light rain
60 °Light rain

Petrolia, Thursday, 29 October

Light rain. High 60°, low 46°.

Pressure30.27 inHg
Wind11.6 mph N
Humidity27%
Visibility—
Dew point22°
Fri, 3064° / 42°0Mostly clear
64 °Mostly clear

Petrolia, Friday, 30 October

Mostly clear. High 64°, low 42°.

Pressure30.21 inHg
Wind7 mph SE
Humidity38%
Visibility—
Dew point34°
Sat, 3170° / 51°0Overcast
70 °Overcast

Petrolia, Saturday, 31 October

Overcast. High 70°, low 51°.

Pressure30.12 inHg
Wind16.9 mph S
Humidity53%
Visibility—
Dew point47°
Sun, 0162° / 57°0.46Rain
62 °Rain

Petrolia, Sunday, 1 November

Rain. High 62°, low 57°.

Pressure30.06 inHg
Wind16.2 mph S
Humidity86%
Visibility—
Dew point53°
Mon, 0263° / 47°0.09Light rain
63 °Light rain

Petrolia, Monday, 2 November

Light rain. High 63°, low 47°.

Pressure30.15 inHg
Wind17.1 mph NW
Humidity39%
Visibility—
Dew point37°
Tue, 0355° / 38°0Overcast
55 °Overcast

Petrolia, Tuesday, 3 November

Overcast. High 55°, low 38°.

Pressure30.36 inHg
Wind9.3 mph NW
Humidity26%
Visibility—
Dew point17°
Wed, 0455° / 44°0.02Light rain
55 °Light rain

Petrolia, Wednesday, 4 November

Light rain. High 55°, low 44°.

Pressure30.00 inHg
Wind21 mph S
Humidity45%
Visibility—
Dew point32°
Thu, 0565° / 47°0.04Light rain
65 °Light rain

Petrolia, Thursday, 5 November

Light rain. High 65°, low 47°.

Pressure29.71 inHg
Wind22.2 mph SW
Humidity36%
Visibility—
Dew point35°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Petrolia, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Petrolia, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.