EN
English Español

As of 15:31 CDT

Weather in Petrolia, IL

57°Current weather

Petrolia, Saturday, 17 October, 15:31

Clear. Feels like 54°. High 57°, low 42°.

Pressure30.47 inHg
Wind4.6 mph N
Humidity35%
Visibility6.2 mi
Dew point30°
Sun, 1862° / 38°0Clear
62 °Clear

Petrolia, Sunday, 18 October

Clear. High 62°, low 38°.

Pressure30.50 inHg
Wind6.7 mph S
Humidity46%
Visibility6.2 mi
Dew point38°
Mon, 1967° / 41°0Clear
67 °Clear

Petrolia, Monday, 19 October

Clear. High 67°, low 41°.

Pressure30.42 inHg
Wind0.2 mph W
Humidity44%
Visibility6.2 mi
Dew point42°
Tue, 2070° / 44°0Clear
70 °Clear

Petrolia, Tuesday, 20 October

Clear. High 70°, low 44°.

Pressure30.39 inHg
Wind2.5 mph E
Humidity44%
Visibility6.2 mi
Dew point45°
Wed, 2169° / 48°0Overcast
69 °Overcast

Petrolia, Wednesday, 21 October

Overcast. High 69°, low 48°.

Pressure30.27 inHg
Wind0.6 mph E
Humidity52%
Visibility6.2 mi
Dew point45°
Thu, 2271° / 46°0Clear
71 °Clear

Petrolia, Thursday, 22 October

Clear. High 71°, low 46°.

Pressure30.24 inHg
Wind6.7 mph NE
Humidity43%
Visibility—
Dew point44°
Fri, 2373° / 49°0Partly cloudy
73 °Partly cloudy

Petrolia, Friday, 23 October

Partly cloudy. High 73°, low 49°.

Pressure30.24 inHg
Wind6.2 mph SE
Humidity33%
Visibility—
Dew point38°
Sat, 2474° / 52°0Overcast
74 °Overcast

Petrolia, Saturday, 24 October

Overcast. High 74°, low 52°.

Pressure30.30 inHg
Wind7.4 mph S
Humidity29%
Visibility—
Dew point36°
Sun, 2577° / 56°0Overcast
77 °Overcast

Petrolia, Sunday, 25 October

Overcast. High 77°, low 56°.

Pressure30.24 inHg
Wind14.1 mph SW
Humidity32%
Visibility—
Dew point42°
Mon, 2679° / 59°0Overcast
79 °Overcast

Petrolia, Monday, 26 October

Overcast. High 79°, low 59°.

Pressure30.15 inHg
Wind12.3 mph SW
Humidity33%
Visibility—
Dew point44°
Tue, 2764° / 51°0Overcast
64 °Overcast

Petrolia, Tuesday, 27 October

Overcast. High 64°, low 51°.

Pressure30.21 inHg
Wind13.6 mph NE
Humidity60%
Visibility—
Dew point49°
Wed, 2865° / 43°0Partly cloudy
65 °Partly cloudy

Petrolia, Wednesday, 28 October

Partly cloudy. High 65°, low 43°.

Pressure30.30 inHg
Wind12.9 mph E
Humidity25%
Visibility—
Dew point24°
Thu, 2969° / 50°0.07Light rain
69 °Light rain

Petrolia, Thursday, 29 October

Light rain. High 69°, low 50°.

Pressure30.03 inHg
Wind14.2 mph S
Humidity81%
Visibility—
Dew point53°
Fri, 3078° / 64°0Overcast
78 °Overcast

Petrolia, Friday, 30 October

Overcast. High 78°, low 64°.

Pressure29.94 inHg
Wind22 mph S
Humidity48%
Visibility—
Dew point53°
Sat, 3172° / 63°0.34Light rain
72 °Light rain

Petrolia, Saturday, 31 October

Light rain. High 72°, low 63°.

Pressure29.91 inHg
Wind24.4 mph SW
Humidity83%
Visibility—
Dew point64°
Sun, 0178° / 61°0.04Light rain
78 °Light rain

Petrolia, Sunday, 1 November

Light rain. High 78°, low 61°.

Pressure30.15 inHg
Wind12.5 mph S
Humidity76%
Visibility—
Dew point65°

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.