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As of 09:18 CDT

Weather in Post Oak, IL

51°Current weather

Post Oak, Friday, 16 October, 09:18

Overcast. Feels like 49°. High 63°, low 51°.

Pressure30.15 inHg
Wind15 mph NW
Humidity74%
Visibility6.2 mi
Dew point42°
Sat, 1763° / 42°0Clear
63 °Clear

Post Oak, Saturday, 17 October

Clear. High 63°, low 42°.

Pressure30.56 inHg
Wind3.7 mph NE
Humidity52%
Visibility6.2 mi
Dew point37°
Sun, 1862° / 39°0Clear
62 °Clear

Post Oak, Sunday, 18 October

Clear. High 62°, low 39°.

Pressure30.53 inHg
Wind7.2 mph S
Humidity44%
Visibility6.2 mi
Dew point36°
Mon, 1967° / 41°0Clear
67 °Clear

Post Oak, Monday, 19 October

Clear. High 67°, low 41°.

Pressure30.39 inHg
Wind2.9 mph SE
Humidity47%
Visibility6.2 mi
Dew point42°
Tue, 2069° / 43°0Clear
69 °Clear

Post Oak, Tuesday, 20 October

Clear. High 69°, low 43°.

Pressure30.33 inHg
Wind4.1 mph E
Humidity39%
Visibility—
Dew point39°
Wed, 2170° / 47°0Clear
70 °Clear

Post Oak, Wednesday, 21 October

Clear. High 70°, low 47°.

Pressure30.30 inHg
Wind4.7 mph E
Humidity40%
Visibility—
Dew point40°
Thu, 2275° / 50°0Light rain
75 °Light rain

Post Oak, Thursday, 22 October

Light rain. High 75°, low 50°.

Pressure30.15 inHg
Wind6.5 mph SW
Humidity24%
Visibility—
Dew point32°
Fri, 2375° / 55°0Clear
75 °Clear

Post Oak, Friday, 23 October

Clear. High 75°, low 55°.

Pressure30.18 inHg
Wind9.9 mph E
Humidity41%
Visibility—
Dew point46°
Sat, 2469° / 50°0Overcast
69 °Overcast

Post Oak, Saturday, 24 October

Overcast. High 69°, low 50°.

Pressure30.24 inHg
Wind8.6 mph SE
Humidity45%
Visibility—
Dew point42°
Sun, 2570° / 49°0Overcast
70 °Overcast

Post Oak, Sunday, 25 October

Overcast. High 70°, low 49°.

Pressure30.18 inHg
Wind7.4 mph E
Humidity31%
Visibility—
Dew point34°
Mon, 2676° / 52°0Overcast
76 °Overcast

Post Oak, Monday, 26 October

Overcast. High 76°, low 52°.

Pressure30.12 inHg
Wind9.1 mph S
Humidity29%
Visibility—
Dew point36°
Tue, 2768° / 56°0Overcast
68 °Overcast

Post Oak, Tuesday, 27 October

Overcast. High 68°, low 56°.

Pressure30.21 inHg
Wind6.3 mph SW
Humidity48%
Visibility—
Dew point46°
Wed, 2872° / 58°0Light rain
72 °Light rain

Post Oak, Wednesday, 28 October

Light rain. High 72°, low 58°.

Pressure30.09 inHg
Wind8.2 mph SE
Humidity50%
Visibility—
Dew point51°
Thu, 2981° / 61°0.05Light rain
81 °Light rain

Post Oak, Thursday, 29 October

Light rain. High 81°, low 61°.

Pressure30.00 inHg
Wind17 mph S
Humidity44%
Visibility—
Dew point54°
Fri, 3078° / 61°0.28Light rain
78 °Light rain

Post Oak, Friday, 30 October

Light rain. High 78°, low 61°.

Pressure30.06 inHg
Wind9.8 mph NE
Humidity59%
Visibility—
Dew point59°
Sat, 3163° / 60°0.08Light rain
63 °Light rain

Post Oak, Saturday, 31 October

Light rain. High 63°, low 60°.

Pressure30.03 inHg
Wind15.4 mph E
Humidity80%
Visibility—
Dew point55°

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.