Currently: 81 °F. Scattered clouds. (Weather station: Lambert-St. Louis International Airport, USA). See more current weatherPast Weather in Cahokia Mounds State Historic SIte — Graph
Cahokia Mounds State Historic SIte Temperature Yesterday
Maximum temperature yesterday: 71 °F (at 3:31 pm)
Minimum temperature yesterday: 65 °F (at 5:51 am)
Average temperature yesterday: 68 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 87 °F (Apr 28, 3:51 pm) | 94% (May 13, 12:51 am) | 30.21 "Hg (May 13, 12:51 am) |
| Low | 46 °F (May 6, 5:51 am) | 24% (May 10, 2:51 pm) | 29.68 "Hg (May 1, 3:51 am) |
| Average | 64 °F | 70% | 29.96 "Hg |
| * Reported Apr 28 3:51 pm — May 13 3:51 pm, Cahokia Mounds State Historic SIte. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Cahokia Mounds State Historic SIte Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 3:51 pm Tue, May 13 |  | 78 °F | Broken clouds. | No wind | ↑ | 54% | 29.72 "Hg | 10 mi |
| 2:51 pm | | 78 °F | Broken clouds. | 7 mph | ↑ | 58% | 29.74 "Hg | 10 mi |
| 1:51 pm | | 78 °F | Partly sunny. | 5 mph | ↑ | 56% | 29.76 "Hg | 10 mi |
| 12:51 pm | | 76 °F | Broken clouds. | 5 mph | ↑ | 62% | 29.78 "Hg | 10 mi |
| 11:51 am | | 73 °F | Broken clouds. | No wind | ↑ | 71% | 29.79 "Hg | 10 mi |
| 11:00 am | | 71 °F | Broken clouds. | 3 mph | ↑ | 76% | 29.83 "Hg | 10 mi |
| 10:51 am | | 71 °F | Partly sunny. | No wind | ↑ | 76% | 29.80 "Hg | 10 mi |
| 10:29 am | | 71 °F | Partly sunny. | 3 mph | ↑ | 78% | 29.83 "Hg | 10 mi |
| 9:59 am |  | 69 °F | Overcast. | No wind | ↑ | 81% | 29.83 "Hg | 10 mi |
| 9:09 am | | 66 °F | Low clouds. | No wind | ↑ | 90% | 29.83 "Hg | 7 mi |
| 8:51 am |  | 66 °F | Fog. | 3 mph | ↑ | 87% | 29.81 "Hg | 4 mi |
| 8:23 am | | 65 °F | Fog. | No wind | ↑ | 94% | 29.83 "Hg | 3 mi |
| 7:51 am | | 64 °F | Fog. | No wind | ↑ | 94% | 29.80 "Hg | 2 mi |
| 7:37 am | | 64 °F | Fog. | 3 mph | ↑ | 94% | 29.82 "Hg | 1 mi |
| 7:01 am | | 64 °F | Fog. | 6 mph | ↑ | 94% | 29.82 "Hg | 0 mi |
| 6:51 am | | 64 °F | Fog. | 5 mph | ↑ | 94% | 29.79 "Hg | 0 mi |
| 6:32 am | | 64 °F | Fog. | No wind | ↑ | 94% | 29.81 "Hg | 0 mi |
| 5:58 am | | 64 °F | Fog. | No wind | ↑ | 90% | 29.80 "Hg | 1 mi |
| 5:43 am | | 64 °F | Fog. | No wind | ↑ | 94% | 29.80 "Hg | 0 mi |
| 5:19 am | | 64 °F | Fog. | No wind | ↑ | 90% | 29.80 "Hg | 1 mi |
| 4:51 am |  | 64 °F | Fog. | No wind | ↑ | 90% | 29.78 "Hg | 1 mi |
| 4:43 am | | 63 °F | Fog. | No wind | ↑ | 93% | 29.80 "Hg | 1 mi |
| 4:38 am | | 63 °F | Fog. | No wind | ↑ | 93% | 29.80 "Hg | 1 mi |
| 4:18 am | | 63 °F | Fog. | 3 mph | ↑ | 90% | 29.80 "Hg | 3 mi |
| 3:58 am | | 63 °F | Fog. | 3 mph | ↑ | 93% | 29.80 "Hg | 4 mi |
| 3:22 am | | 64 °F | Fog. | No wind | ↑ | 90% | 29.80 "Hg | 3 mi |
| 2:54 am | | 64 °F | Fog. | 5 mph | ↑ | 90% | 29.80 "Hg | 2 mi |
| 2:19 am | | 64 °F | Fog. | 3 mph | ↑ | 90% | 29.80 "Hg | 6 mi |
| 1:51 am | | 65 °F | Fog. | 6 mph | ↑ | 91% | 29.78 "Hg | 6 mi |
| 1:09 am |  | 65 °F | Low clouds. | 6 mph | ↑ | 91% | 29.80 "Hg | 7 mi |
| 12:51 am | | 65 °F | Fog. | 6 mph | ↑ | 94% | 29.79 "Hg | 6 mi |
| 12:42 am | | 66 °F | Fog. | 6 mph | ↑ | 90% | 29.81 "Hg | 6 mi |
| 12:11 am | | 65 °F | Passing clouds. | 6 mph | ↑ | 91% | 29.81 "Hg | 8 mi |
| 11:51 pm Mon, May 12 | | 65 °F | Passing clouds. | 6 mph | ↑ | 91% | 29.79 "Hg | 8 mi |
| 10:51 pm | | 66 °F | Mostly cloudy. | 7 mph | ↑ | 90% | 29.80 "Hg | 10 mi |
| 9:51 pm | | 66 °F | Mostly cloudy. | 7 mph | ↑ | 90% | 29.80 "Hg | 10 mi |
| 9:26 pm |  | 67 °F | Partly cloudy. | 10 mph | ↑ | 87% | 29.82 "Hg | 10 mi |
| 9:09 pm | | 67 °F | Partly cloudy. | 5 mph | ↑ | 87% | 29.81 "Hg | 10 mi |
| 8:51 pm | | 67 °F | Partly cloudy. | 8 mph | ↑ | 87% | 29.79 "Hg | 10 mi |
| 7:51 pm |  | 68 °F | Light rain. Overcast. | 7 mph | ↑ | 84% | 29.78 "Hg | 10 mi |
| 6:51 pm | | 70 °F | Broken clouds. | 7 mph | ↑ | 76% | 29.78 "Hg | 10 mi |
| 5:51 pm | | 70 °F | Light rain. Cloudy. | 6 mph | ↑ | 81% | 29.79 "Hg | 10 mi |
| 5:10 pm |  | 69 °F | Rain. Cloudy. | 7 mph | ↑ | 81% | 29.82 "Hg | 7 mi |
| 5:03 pm | | 71 °F | Light rain. Cloudy. | 7 mph | ↑ | 76% | 29.82 "Hg | 4 mi |
| Weather by CustomWeather, © 2025 | ||||||||