As of 11:30 CDT

Weather in Post Oak, IL

75°Current weather

Post Oak, Saturday, 10 October, 11:30

Overcast. Feels like 74°. High 77°, low 56°.

Pressure30.09 inHg
Wind6.4 mph SE
Humidity53%
Visibility6.2 mi
Dew point56°
Sun, 1182° / 50°0Clear
82 °Clear

Post Oak, Sunday, 11 October

Clear. High 82°, low 50°.

Pressure30.00 inHg
Wind3.4 mph NW
Humidity49%
Visibility6.2 mi
Dew point54°
Mon, 1288° / 58°0Clear
88 °Clear

Post Oak, Monday, 12 October

Clear. High 88°, low 58°.

Pressure29.94 inHg
Wind9.1 mph SW
Humidity47%
Visibility6.2 mi
Dew point61°
Tue, 1390° / 68°0Clear
90 °Clear

Post Oak, Tuesday, 13 October

Clear. High 90°, low 68°.

Pressure29.88 inHg
Wind8.7 mph W
Humidity51%
Visibility6.2 mi
Dew point65°
Wed, 1478° / 68°0.14Light rain
78 °Light rain

Post Oak, Wednesday, 14 October

Light rain. High 78°, low 68°.

Pressure30.03 inHg
Wind10.8 mph NE
Humidity68%
Visibility—
Dew point66°
Thu, 1565° / 57°0.79Rain
65 °Rain

Post Oak, Thursday, 15 October

Rain. High 65°, low 57°.

Pressure30.21 inHg
Wind10.8 mph NE
Humidity73%
Visibility—
Dew point55°
Fri, 1664° / 46°0.15Light rain
64 °Light rain

Post Oak, Friday, 16 October

Light rain. High 64°, low 46°.

Pressure30.00 inHg
Wind24.7 mph W
Humidity36%
Visibility—
Dew point34°
Sat, 1743° / 35°0Overcast
43 °Overcast

Post Oak, Saturday, 17 October

Overcast. High 43°, low 35°.

Pressure30.33 inHg
Wind20.8 mph NW
Humidity42%
Visibility—
Dew point20°
Sun, 1852° / 29°0Clear
52 °Clear

Post Oak, Sunday, 18 October

Clear. High 52°, low 29°.

Pressure30.50 inHg
Wind7.9 mph NW
Humidity33%
Visibility—
Dew point20°
Mon, 1960° / 35°0Partly cloudy
60 °Partly cloudy

Post Oak, Monday, 19 October

Partly cloudy. High 60°, low 35°.

Pressure30.42 inHg
Wind11.3 mph S
Humidity30%
Visibility—
Dew point24°
Tue, 2065° / 40°0Partly cloudy
65 °Partly cloudy

Post Oak, Tuesday, 20 October

Partly cloudy. High 65°, low 40°.

Pressure30.30 inHg
Wind14.6 mph S
Humidity30%
Visibility—
Dew point29°
Wed, 2159° / 49°0.19Rain
59 °Rain

Post Oak, Wednesday, 21 October

Rain. High 59°, low 49°.

Pressure30.09 inHg
Wind17.1 mph S
Humidity67%
Visibility—
Dew point47°
Thu, 2268° / 44°0Clear
68 °Clear

Post Oak, Thursday, 22 October

Clear. High 68°, low 44°.

Pressure30.21 inHg
Wind8.9 mph SW
Humidity39%
Visibility—
Dew point37°
Fri, 2368° / 49°0Clear
68 °Clear

Post Oak, Friday, 23 October

Clear. High 68°, low 49°.

Pressure30.18 inHg
Wind8.6 mph SW
Humidity27%
Visibility—
Dew point30°
Sat, 2469° / 47°0.01Light rain
69 °Light rain

Post Oak, Saturday, 24 October

Light rain. High 69°, low 47°.

Pressure30.18 inHg
Wind8.7 mph SE
Humidity29%
Visibility—
Dew point30°
Sun, 2565° / 51°0.17Light rain
65 °Light rain

Post Oak, Sunday, 25 October

Light rain. High 65°, low 51°.

Pressure29.80 inHg
Wind17.7 mph NW
Humidity78%
Visibility—
Dew point56°

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.