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As of 02:45 CST

Weather in Petrolia, IL

39°Current weather

Petrolia, Monday, 9 November, 02:45

Clear. Feels like 37°. High 66°, low 39°.

Pressure30.12 inHg
Wind3.4 mph SW
Humidity93%
Visibility6.2 mi
Dew point37°
Tue, 1068° / 44°0Clear
68 °Clear

Petrolia, Tuesday, 10 November

Clear. High 68°, low 44°.

Pressure30.06 inHg
Wind4.7 mph W
Humidity59%
Visibility6.2 mi
Dew point50°
Wed, 1167° / 46°0.09Light rain
67 °Light rain

Petrolia, Wednesday, 11 November

Light rain. High 67°, low 46°.

Pressure29.80 inHg
Wind8.2 mph S
Humidity58%
Visibility6.2 mi
Dew point51°
Thu, 1253° / 42°0Overcast
53 °Overcast

Petrolia, Thursday, 12 November

Overcast. High 53°, low 42°.

Pressure29.85 inHg
Wind15 mph NW
Humidity48%
Visibility6.2 mi
Dew point34°
Fri, 1346° / 36°0Overcast
46 °Overcast

Petrolia, Friday, 13 November

Overcast. High 46°, low 36°.

Pressure30.00 inHg
Wind14.3 mph N
Humidity57%
Visibility—
Dew point30°
Sat, 1448° / 33°0Clear
48 °Clear

Petrolia, Saturday, 14 November

Clear. High 48°, low 33°.

Pressure30.27 inHg
Wind6.4 mph NW
Humidity56%
Visibility—
Dew point30°
Sun, 1557° / 34°0Clear
57 °Clear

Petrolia, Sunday, 15 November

Clear. High 57°, low 34°.

Pressure30.12 inHg
Wind9.3 mph S
Humidity35%
Visibility—
Dew point24°
Mon, 1663° / 44°0Light rain
63 °Light rain

Petrolia, Monday, 16 November

Light rain. High 63°, low 44°.

Pressure30.03 inHg
Wind8.3 mph S
Humidity49%
Visibility—
Dew point42°
Tue, 1770° / 53°0Overcast
70 °Overcast

Petrolia, Tuesday, 17 November

Overcast. High 70°, low 53°.

Pressure30.21 inHg
Wind6.2 mph S
Humidity41%
Visibility—
Dew point40°
Wed, 1870° / 52°0Clear
70 °Clear

Petrolia, Wednesday, 18 November

Clear. High 70°, low 52°.

Pressure30.30 inHg
Wind6.8 mph S
Humidity36%
Visibility—
Dew point38°
Thu, 1971° / 51°0Mostly clear
71 °Mostly clear

Petrolia, Thursday, 19 November

Mostly clear. High 71°, low 51°.

Pressure30.18 inHg
Wind15.3 mph S
Humidity40%
Visibility—
Dew point42°
Fri, 2063° / 59°0.04Light rain
63 °Light rain

Petrolia, Friday, 20 November

Light rain. High 63°, low 59°.

Pressure30.06 inHg
Wind20.3 mph S
Humidity66%
Visibility—
Dew point51°
Sat, 2159° / 49°1.28Rain
59 °Rain

Petrolia, Saturday, 21 November

Rain. High 59°, low 49°.

Pressure30.15 inHg
Wind10.8 mph N
Humidity91%
Visibility—
Dew point53°
Sun, 2262° / 51°0.61Rain
62 °Rain

Petrolia, Sunday, 22 November

Rain. High 62°, low 51°.

Pressure29.74 inHg
Wind15.5 mph SW
Humidity89%
Visibility—
Dew point57°
Mon, 2348° / 39°0.04Light rain
48 °Light rain

Petrolia, Monday, 23 November

Light rain. High 48°, low 39°.

Pressure29.88 inHg
Wind17.1 mph SW
Humidity85%
Visibility—
Dew point37°
Tue, 2449° / 37°0Overcast
49 °Overcast

Petrolia, Tuesday, 24 November

Overcast. High 49°, low 37°.

Pressure29.97 inHg
Wind9.2 mph NW
Humidity48%
Visibility—
Dew point28°

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.