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As of 04:01 CDT

Weather in Post Oak, IL

56°Current weather

Post Oak, Sunday, 11 October, 04:01

Clear. Feels like 55°. High 82°, low 55°.

Pressure29.94 inHg
Wind3.3 mph N
Humidity89%
Visibility6.2 mi
Dew point53°
Mon, 1290° / 60°0Mostly clear
90 °Mostly clear

Post Oak, Monday, 12 October

Mostly clear. High 90°, low 60°.

Pressure29.94 inHg
Wind9.5 mph SW
Humidity46%
Visibility6.2 mi
Dew point60°
Tue, 1389° / 68°0Clear
89 °Clear

Post Oak, Tuesday, 13 October

Clear. High 89°, low 68°.

Pressure29.88 inHg
Wind9.1 mph SW
Humidity49%
Visibility6.2 mi
Dew point64°
Wed, 1484° / 70°0.45Rain
84 °Rain

Post Oak, Wednesday, 14 October

Rain. High 84°, low 70°.

Pressure30.00 inHg
Wind4.9 mph SW
Humidity77%
Visibility6.2 mi
Dew point70°
Thu, 1578° / 63°0.7Heavy rain
78 °Heavy rain

Post Oak, Thursday, 15 October

Heavy rain. High 78°, low 63°.

Pressure30.06 inHg
Wind10 mph NE
Humidity83%
Visibility—
Dew point67°
Fri, 1670° / 46°0.44Rain
70 °Rain

Post Oak, Friday, 16 October

Rain. High 70°, low 46°.

Pressure30.33 inHg
Wind17 mph N
Humidity51%
Visibility—
Dew point44°
Sat, 1744° / 33°0Overcast
44 °Overcast

Post Oak, Saturday, 17 October

Overcast. High 44°, low 33°.

Pressure30.39 inHg
Wind21.4 mph NW
Humidity41%
Visibility—
Dew point19°
Sun, 1850° / 30°0Mostly clear
50 °Mostly clear

Post Oak, Sunday, 18 October

Mostly clear. High 50°, low 30°.

Pressure30.56 inHg
Wind8.9 mph NW
Humidity29%
Visibility—
Dew point15°
Mon, 1960° / 35°0Mostly clear
60 °Mostly clear

Post Oak, Monday, 19 October

Mostly clear. High 60°, low 35°.

Pressure30.36 inHg
Wind14.2 mph SW
Humidity28%
Visibility—
Dew point22°
Tue, 2067° / 41°0Clear
67 °Clear

Post Oak, Tuesday, 20 October

Clear. High 67°, low 41°.

Pressure30.27 inHg
Wind13 mph S
Humidity24%
Visibility—
Dew point24°
Wed, 2170° / 46°0Overcast
70 °Overcast

Post Oak, Wednesday, 21 October

Overcast. High 70°, low 46°.

Pressure30.27 inHg
Wind13.3 mph S
Humidity28%
Visibility—
Dew point31°
Thu, 2267° / 52°0Overcast
67 °Overcast

Post Oak, Thursday, 22 October

Overcast. High 67°, low 52°.

Pressure30.33 inHg
Wind7.6 mph SW
Humidity47%
Visibility—
Dew point44°
Fri, 2372° / 50°0Clear
72 °Clear

Post Oak, Friday, 23 October

Clear. High 72°, low 50°.

Pressure30.30 inHg
Wind9.8 mph S
Humidity39%
Visibility—
Dew point42°
Sat, 2470° / 51°0.01Light rain
70 °Light rain

Post Oak, Saturday, 24 October

Light rain. High 70°, low 51°.

Pressure30.12 inHg
Wind16.8 mph NW
Humidity46%
Visibility—
Dew point47°
Sun, 2557° / 40°0Clear
57 °Clear

Post Oak, Sunday, 25 October

Clear. High 57°, low 40°.

Pressure30.39 inHg
Wind8.7 mph N
Humidity39%
Visibility—
Dew point29°
Mon, 2664° / 40°0Clear
64 °Clear

Post Oak, Monday, 26 October

Clear. High 64°, low 40°.

Pressure30.12 inHg
Wind12.4 mph SW
Humidity37%
Visibility—
Dew point32°

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.