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As of 03:38 CST

Weather in Port Jackson, IL

43°Current weather

Port Jackson, Tuesday, 10 November, 03:38

Clear. Feels like 40°. High 70°, low 43°.

Pressure30.09 inHg
Wind4.6 mph S
Humidity81%
Visibility6.2 mi
Dew point37°
Wed, 1169° / 42°0.07Light rain
69 °Light rain

Port Jackson, Wednesday, 11 November

Light rain. High 69°, low 42°.

Pressure29.77 inHg
Wind10.4 mph SW
Humidity58%
Visibility6.2 mi
Dew point51°
Thu, 1251° / 39°0Overcast
51 °Overcast

Port Jackson, Thursday, 12 November

Overcast. High 51°, low 39°.

Pressure29.91 inHg
Wind14 mph N
Humidity49%
Visibility6.2 mi
Dew point31°
Fri, 1344° / 37°0Overcast
44 °Overcast

Port Jackson, Friday, 13 November

Overcast. High 44°, low 37°.

Pressure30.03 inHg
Wind13 mph NW
Humidity57%
Visibility6.2 mi
Dew point23°
Sat, 1446° / 29°0Clear
46 °Clear

Port Jackson, Saturday, 14 November

Clear. High 46°, low 29°.

Pressure30.24 inHg
Wind6.4 mph NW
Humidity54%
Visibility—
Dew point28°
Sun, 1551° / 29°0Clear
51 °Clear

Port Jackson, Sunday, 15 November

Clear. High 51°, low 29°.

Pressure30.36 inHg
Wind5.5 mph E
Humidity48%
Visibility—
Dew point28°
Mon, 1653° / 36°0Overcast
53 °Overcast

Port Jackson, Monday, 16 November

Overcast. High 53°, low 36°.

Pressure30.39 inHg
Wind8.9 mph E
Humidity35%
Visibility—
Dew point23°
Tue, 1756° / 36°0Clear
56 °Clear

Port Jackson, Tuesday, 17 November

Clear. High 56°, low 36°.

Pressure30.39 inHg
Wind7.9 mph E
Humidity38%
Visibility—
Dew point27°
Wed, 1860° / 39°0Clear
60 °Clear

Port Jackson, Wednesday, 18 November

Clear. High 60°, low 39°.

Pressure30.36 inHg
Wind6.9 mph SE
Humidity33%
Visibility—
Dew point26°
Thu, 1959° / 45°0Overcast
59 °Overcast

Port Jackson, Thursday, 19 November

Overcast. High 59°, low 45°.

Pressure30.30 inHg
Wind9.8 mph SE
Humidity49%
Visibility—
Dew point37°
Fri, 2057° / 54°0.31Light rain
57 °Light rain

Port Jackson, Friday, 20 November

Light rain. High 57°, low 54°.

Pressure30.12 inHg
Wind18.3 mph S
Humidity82%
Visibility—
Dew point51°
Sat, 2161° / 47°0.11Light rain
61 °Light rain

Port Jackson, Saturday, 21 November

Light rain. High 61°, low 47°.

Pressure29.88 inHg
Wind20.5 mph S
Humidity58%
Visibility—
Dew point43°
Sun, 2249° / 42°0Overcast
49 °Overcast

Port Jackson, Sunday, 22 November

Overcast. High 49°, low 42°.

Pressure30.09 inHg
Wind9.8 mph N
Humidity52%
Visibility—
Dew point30°
Mon, 2342° / 32°0.87Snow
42 °Snow

Port Jackson, Monday, 23 November

Snow. High 42°, low 32°.

Pressure29.83 inHg
Wind15.8 mph NW
Humidity100%
Visibility—
Dew point34°
Tue, 2441° / 32°0.03Light snow
41 °Light snow

Port Jackson, Tuesday, 24 November

Light snow. High 41°, low 32°.

Pressure29.85 inHg
Wind17.3 mph SW
Humidity80%
Visibility—
Dew point31°
Wed, 2532° / 23°0Partly cloudy
32 °Partly cloudy

Port Jackson, Wednesday, 25 November

Partly cloudy. High 32°, low 23°.

Pressure30.36 inHg
Wind15.4 mph W
Humidity52%
Visibility—
Dew point14°

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 Port Jackson, 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 Port Jackson, 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.