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As of 23:29 CDT

Weather in Post Oak, IL

72°Current weather

Post Oak, Thursday, 15 October, 23:29

Overcast. Feels like 73°. High 77°, low 67°.

Pressure29.88 inHg
Wind12.8 mph W
Humidity85%
Visibility6.2 mi
Dew point66°
Fri, 1671° / 53°0.02Light rain
71 °Light rain

Post Oak, Friday, 16 October

Light rain. High 71°, low 53°.

Pressure30.18 inHg
Wind16.2 mph NW
Humidity48%
Visibility6.2 mi
Dew point37°
Sat, 1758° / 42°0Clear
58 °Clear

Post Oak, Saturday, 17 October

Clear. High 58°, low 42°.

Pressure30.56 inHg
Wind3.9 mph NE
Humidity51%
Visibility6.2 mi
Dew point37°
Sun, 1862° / 41°0Clear
62 °Clear

Post Oak, Sunday, 18 October

Clear. High 62°, low 41°.

Pressure30.50 inHg
Wind7.6 mph S
Humidity39%
Visibility6.2 mi
Dew point34°
Mon, 1967° / 41°0Clear
67 °Clear

Post Oak, Monday, 19 October

Clear. High 67°, low 41°.

Pressure30.39 inHg
Wind4.3 mph S
Humidity48%
Visibility6.2 mi
Dew point42°
Tue, 2069° / 43°0Clear
69 °Clear

Post Oak, Tuesday, 20 October

Clear. High 69°, low 43°.

Pressure30.33 inHg
Wind4.2 mph E
Humidity38%
Visibility—
Dew point39°
Wed, 2173° / 50°0Overcast
73 °Overcast

Post Oak, Wednesday, 21 October

Overcast. High 73°, low 50°.

Pressure30.30 inHg
Wind5 mph SE
Humidity37%
Visibility—
Dew point40°
Thu, 2277° / 53°0Mostly clear
77 °Mostly clear

Post Oak, Thursday, 22 October

Mostly clear. High 77°, low 53°.

Pressure30.24 inHg
Wind5.8 mph SE
Humidity25%
Visibility—
Dew point34°
Fri, 2378° / 54°0Mostly clear
78 °Mostly clear

Post Oak, Friday, 23 October

Mostly clear. High 78°, low 54°.

Pressure30.15 inHg
Wind9.2 mph SE
Humidity26%
Visibility—
Dew point36°
Sat, 2475° / 57°0Overcast
75 °Overcast

Post Oak, Saturday, 24 October

Overcast. High 75°, low 57°.

Pressure30.21 inHg
Wind8.1 mph SE
Humidity31%
Visibility—
Dew point38°
Sun, 2575° / 54°0Overcast
75 °Overcast

Post Oak, Sunday, 25 October

Overcast. High 75°, low 54°.

Pressure30.21 inHg
Wind6.9 mph E
Humidity31%
Visibility—
Dew point39°
Mon, 2677° / 56°0Overcast
77 °Overcast

Post Oak, Monday, 26 October

Overcast. High 77°, low 56°.

Pressure30.03 inHg
Wind12.8 mph S
Humidity30%
Visibility—
Dew point37°
Tue, 2768° / 48°0Clear
68 °Clear

Post Oak, Tuesday, 27 October

Clear. High 68°, low 48°.

Pressure30.06 inHg
Wind9.9 mph SW
Humidity35%
Visibility—
Dew point35°
Wed, 2866° / 52°0.73Heavy rain
66 °Heavy rain

Post Oak, Wednesday, 28 October

Heavy rain. High 66°, low 52°.

Pressure29.68 inHg
Wind23.7 mph SW
Humidity91%
Visibility—
Dew point58°
Thu, 2961° / 47°0Overcast
61 °Overcast

Post Oak, Thursday, 29 October

Overcast. High 61°, low 47°.

Pressure29.94 inHg
Wind19.7 mph W
Humidity55%
Visibility—
Dew point42°
Fri, 3067° / 46°0Mostly clear
67 °Mostly clear

Post Oak, Friday, 30 October

Mostly clear. High 67°, low 46°.

Pressure30.06 inHg
Wind8.1 mph NW
Humidity41%
Visibility—
Dew point39°

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 Post Oak, 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 Post Oak, 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.