Location & Surroundings
Post Oak is a settlement in Illinois, United States, at 183 m elevation. The nearest larger town is Vandalia, 21 km to the southwest. The national capital Washington is about 1025 km to the east. The nearest airport is Miller Landing Strip, 9 km away.
Also known as: Loudon City · Louden City
Basic Data
- Type populated place (PPL)
- a city, town, village, or other agglomeration of buildings where people live and work
Geography
-
Coordinates
39° 5' 25" N, 88° 54' 33" W
- Elevation 183 m (DEM: 183 m)
- Timezone America/Chicago
- Time Shift GMT -6 (DST -5)
Statistics & Country
- Pop. Density 30 p/km²
- Built-up 0.4%
- Settlement Very low density rural
- Currency Dollar (USD)
- Phone Prefix +1
Sun & Local Time
- Local time 14:38
- Sunrise 07:13
- Sunset 18:06
- Day length 10 h 53 min
Other populated places nearby
Nearby
Alternate Names
Weather in Post Oak
Current conditions and a 3-day (72-hour) weather forecast for Post Oak, updated from the NOAA GFS model.
Now 10.9 C with partly cloudy skies and a 2.1 m/s south-easterly wind. Next 24h: 10.9 to 22.2 C, max wind 2.8 m/s. No precipitation expected. Solar peaks near 323 W/m2.
Temperature
10.9 C
Wind
2.1 m/s SE (139 deg)
Humidity
64 %
Pressure
1,027.7 hPa
Clouds
41 %
Precip
0.00 mm
Solar
0.0 W/m2
UV-B
n/a
| Hour | Temp (C) | Wind (m/s) | Dir (deg) | RH (%) | Pressure (hPa) | Precip (step/total mm) | Clouds (%) | Solar (W/m2) | UV-B (W/m2) |
|---|---|---|---|---|---|---|---|---|---|
| NOW | 10.9 | 2.1 | 139 | 64 | 1,027.7 | - / 0.00 | 41 | 0.0 | n/a |
| 6h | 22.2 | 2.8 | 134 | 32 | 1,026.8 | 0.00 / 0.00 | 44 | 323.1 | n/a |
| 12h | 17.3 | 2.8 | 128 | 41 | 1,026.8 | 0.00 / 0.00 | 57 | 277.8 | n/a |
| 18h | 13.6 | 2.8 | 131 | 54 | 1,028.1 | 0.00 / 0.00 | 19 | 0.0 | n/a |
| Tomorrow | 11.6 | 2.3 | 149 | 61 | 1,029.6 | 0.00 / 0.00 | 84 | 0.0 | n/a |
| 30h | 23.2 | 2.4 | 185 | 31 | 1,028.4 | 0.00 / 0.00 | 91 | 330.0 | n/a |
| 36h | 18.8 | 1.4 | 177 | 40 | 1,026.6 | 0.00 / 0.00 | 100 | 278.3 | n/a |
| 42h | 15.5 | 2.3 | 203 | 53 | 1,026.9 | 0.00 / 0.00 | 100 | 0.0 | n/a |
| Monday | 13.7 | 2.5 | 214 | 60 | 1,027.4 | 0.00 / 0.00 | 100 | 0.0 | n/a |
| 54h | 23.3 | 2.9 | 219 | 33 | 1,025.5 | 0.00 / 0.00 | 97 | 276.8 | n/a |
| 60h | 18.3 | 1.1 | 199 | 43 | 1,024.2 | 0.00 / 0.00 | 97 | 240.3 | n/a |
| 66h | 14.6 | 2.4 | 182 | 53 | 1,024.2 | 0.00 / 0.00 | 96 | 0.0 | n/a |
| Tuesday | 13.6 | 2.3 | 175 | 59 | 1,024.8 | 0.00 / 0.00 | 100 | 0.0 | n/a |
Source: NOAA GFS 0.25° (run 2026-10-24 12:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Post Oak?
Now 10.9 C with partly cloudy skies and a 2.1 m/s south-easterly wind. Next 24h: 10.9 to 22.2 C, max wind 2.8 m/s. No precipitation expected. Solar peaks near 323 W/m2.
Is precipitation expected in the next 24 hours?
No measurable precipitation is expected in the next 24 hours.
When are sunrise and sunset in Post Oak today?
Sunrise around 07:13 and sunset around 18:06 (local time). Day length about 10h 53m.
What is the local time in Post Oak?
Local time is 14:38. Time zone: America/Chicago (UTC-05:00).
What type of place is Post Oak?
Post Oak is a populated place.
What is the elevation of Post Oak?
Elevation about 183 m. DEM 183 m.
Where is Post Oak located?
It is at 39.09032, -88.90923 (latitude, longitude).
Which country is Post Oak in?
It is in United States.