EN
English Español

As of 01:00 CDT

Weather in Petrolia, IL

46°Current weather

Petrolia, Wednesday, 21 October, 01:00

Clear. Feels like 45°. High 74°, low 46°.

Pressure30.27 inHg
Wind3.4 mph W
Humidity100%
Visibility6.2 mi
Dew point46°
Thu, 2275° / 47°0Clear
75 °Clear

Petrolia, Thursday, 22 October

Clear. High 75°, low 47°.

Pressure30.27 inHg
Wind6 mph NE
Humidity38%
Visibility6.2 mi
Dew point44°
Fri, 2371° / 48°0Clear
71 °Clear

Petrolia, Friday, 23 October

Clear. High 71°, low 48°.

Pressure30.33 inHg
Wind5.4 mph SE
Humidity47%
Visibility6.2 mi
Dew point48°
Sat, 2471° / 49°0Mostly clear
71 °Mostly clear

Petrolia, Saturday, 24 October

Mostly clear. High 71°, low 49°.

Pressure30.39 inHg
Wind5.5 mph SE
Humidity51%
Visibility6.2 mi
Dew point47°
Sun, 2575° / 49°0Overcast
75 °Overcast

Petrolia, Sunday, 25 October

Overcast. High 75°, low 49°.

Pressure30.39 inHg
Wind5.3 mph SE
Humidity38%
Visibility—
Dew point44°
Mon, 2674° / 53°0Overcast
74 °Overcast

Petrolia, Monday, 26 October

Overcast. High 74°, low 53°.

Pressure30.27 inHg
Wind9.1 mph SW
Humidity37%
Visibility—
Dew point43°
Tue, 2760° / 46°0.04Light rain
60 °Light rain

Petrolia, Tuesday, 27 October

Light rain. High 60°, low 46°.

Pressure30.27 inHg
Wind13.2 mph N
Humidity79%
Visibility—
Dew point44°
Wed, 2851° / 41°0Overcast
51 °Overcast

Petrolia, Wednesday, 28 October

Overcast. High 51°, low 41°.

Pressure30.27 inHg
Wind10.2 mph NE
Humidity69%
Visibility—
Dew point38°
Thu, 2958° / 36°0Clear
58 °Clear

Petrolia, Thursday, 29 October

Clear. High 58°, low 36°.

Pressure30.27 inHg
Wind6.9 mph NW
Humidity31%
Visibility—
Dew point23°
Fri, 3061° / 39°0Overcast
61 °Overcast

Petrolia, Friday, 30 October

Overcast. High 61°, low 39°.

Pressure30.21 inHg
Wind7.4 mph E
Humidity35%
Visibility—
Dew point29°
Sat, 3167° / 40°0Mostly clear
67 °Mostly clear

Petrolia, Saturday, 31 October

Mostly clear. High 67°, low 40°.

Pressure30.03 inHg
Wind11 mph S
Humidity31%
Visibility—
Dew point31°
Sun, 0158° / 56°0.41Rain
58 °Rain

Petrolia, Sunday, 1 November

Rain. High 58°, low 56°.

Pressure30.03 inHg
Wind14.2 mph S
Humidity92%
Visibility—
Dew point54°
Mon, 0271° / 55°0.02Light rain
71 °Light rain

Petrolia, Monday, 2 November

Light rain. High 71°, low 55°.

Pressure30.12 inHg
Wind10.2 mph NW
Humidity47%
Visibility—
Dew point48°
Tue, 0360° / 45°0Mostly clear
60 °Mostly clear

Petrolia, Tuesday, 3 November

Mostly clear. High 60°, low 45°.

Pressure30.30 inHg
Wind9.2 mph NE
Humidity31%
Visibility—
Dew point27°
Wed, 0457° / 45°0Overcast
57 °Overcast

Petrolia, Wednesday, 4 November

Overcast. High 57°, low 45°.

Pressure30.12 inHg
Wind9.8 mph E
Humidity41%
Visibility—
Dew point32°
Thu, 0561° / 47°0Clear
61 °Clear

Petrolia, Thursday, 5 November

Clear. High 61°, low 47°.

Pressure30.30 inHg
Wind11.5 mph E
Humidity33%
Visibility—
Dew point30°

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.