As of 18:34 CDT

Weather in Petrolia, IL

68°Current weather

Petrolia, Sunday, 25 October, 18:34

Clear. Feels like 67°. High 76°, low 45°.

Pressure30.36 inHg
Wind4.6 mph E
Humidity52%
Visibility6.2 mi
Dew point50°
Mon, 2675° / 48°0Overcast
75 °Overcast

Petrolia, Monday, 26 October

Overcast. High 75°, low 48°.

Pressure30.33 inHg
Wind5.7 mph SW
Humidity48%
Visibility6.2 mi
Dew point51°
Tue, 2772° / 47°0Overcast
72 °Overcast

Petrolia, Tuesday, 27 October

Overcast. High 72°, low 47°.

Pressure30.27 inHg
Wind3.7 mph S
Humidity51%
Visibility6.2 mi
Dew point51°
Wed, 2873° / 53°0.04Light rain
73 °Light rain

Petrolia, Wednesday, 28 October

Light rain. High 73°, low 53°.

Pressure30.21 inHg
Wind3.5 mph S
Humidity45%
Visibility6.2 mi
Dew point50°
Thu, 2977° / 54°0Clear
77 °Clear

Petrolia, Thursday, 29 October

Clear. High 77°, low 54°.

Pressure30.15 inHg
Wind9.1 mph SW
Humidity48%
Visibility6.2 mi
Dew point51°
Fri, 3075° / 57°0Overcast
75 °Overcast

Petrolia, Friday, 30 October

Overcast. High 75°, low 57°.

Pressure30.15 inHg
Wind5.8 mph SW
Humidity62%
Visibility—
Dew point58°
Sat, 3168° / 58°0.01Light rain
68 °Light rain

Petrolia, Saturday, 31 October

Light rain. High 68°, low 58°.

Pressure30.21 inHg
Wind11 mph E
Humidity52%
Visibility—
Dew point48°
Sun, 0165° / 59°0.18Light rain
65 °Light rain

Petrolia, Sunday, 1 November

Light rain. High 65°, low 59°.

Pressure30.15 inHg
Wind8.4 mph SE
Humidity87%
Visibility—
Dew point56°
Mon, 0261° / 57°0.01Light rain
61 °Light rain

Petrolia, Monday, 2 November

Light rain. High 61°, low 57°.

Pressure30.06 inHg
Wind9.6 mph NE
Humidity87%
Visibility—
Dew point55°
Tue, 0370° / 51°0Overcast
70 °Overcast

Petrolia, Tuesday, 3 November

Overcast. High 70°, low 51°.

Pressure30.06 inHg
Wind10.6 mph E
Humidity51%
Visibility—
Dew point46°
Wed, 0468° / 50°0Overcast
68 °Overcast

Petrolia, Wednesday, 4 November

Overcast. High 68°, low 50°.

Pressure30.06 inHg
Wind9.3 mph E
Humidity43%
Visibility—
Dew point41°
Thu, 0568° / 51°0Partly cloudy
68 °Partly cloudy

Petrolia, Thursday, 5 November

Partly cloudy. High 68°, low 51°.

Pressure29.94 inHg
Wind4.2 mph E
Humidity36%
Visibility—
Dew point38°
Fri, 0669° / 54°0Overcast
69 °Overcast

Petrolia, Friday, 6 November

Overcast. High 69°, low 54°.

Pressure29.91 inHg
Wind4.6 mph SE
Humidity40%
Visibility—
Dew point41°
Sat, 0771° / 53°0Overcast
71 °Overcast

Petrolia, Saturday, 7 November

Overcast. High 71°, low 53°.

Pressure29.85 inHg
Wind9.5 mph S
Humidity35%
Visibility—
Dew point39°
Sun, 0868° / 54°0.06Light rain
68 °Light rain

Petrolia, Sunday, 8 November

Light rain. High 68°, low 54°.

Pressure29.77 inHg
Wind11.6 mph SW
Humidity35%
Visibility—
Dew point37°
Mon, 0959° / 46°0Clear
59 °Clear

Petrolia, Monday, 9 November

Clear. High 59°, low 46°.

Pressure29.62 inHg
Wind22.1 mph W
Humidity26%
Visibility—
Dew point22°

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.