Currently: 54 °F. Sunny. (Weather station: Stennis International Airport, USA). See more current weatherPast Weather in Bay St. Louis — Graph
Bay St. Louis Temperature Yesterday
Maximum temperature yesterday: 63 °F (at 12:50 pm)
Minimum temperature yesterday: 30 °F (at 6:47 am)
Average temperature yesterday: 50 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 81 °F (Jan 9, 12:47 pm) | 100% (Jan 7, 6:50 am) | 30.51 "Hg (Jan 7, 6:50 am) |
| Low | 30 °F (Jan 15, 8:50 pm) | 21% (Jan 19, 1:50 pm) | 29.83 "Hg (Jan 14, 1:50 pm) |
| Average | 59 °F | 65% | 30.15 "Hg |
| * Reported Jan 6 8:55 am — Jan 21 7:50 am, Bay St. Louis. Weather by CustomWeather, © 2026 | |||
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
Bay St. Louis Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 7:50 am Wed, Jan 21 | | 45 °F | Sunny. | No wind | ↑ | 87% | 30.33 "Hg | 10 mi |
| 6:50 am |  | 39 °F | Passing clouds. | No wind | ↑ | 93% | 30.33 "Hg | 7 mi |
| 8:50 pm Tue, Jan 20 |  | 39 °F | Clear. | No wind | ↑ | 93% | 30.40 "Hg | 10 mi |
| 7:50 pm | | 39 °F | Clear. | No wind | ↑ | 93% | 30.41 "Hg | 10 mi |
| 5:50 pm | | 46 °F | Clear. | No wind | ↑ | 71% | 30.40 "Hg | 10 mi |
| 4:50 pm | | 54 °F | Sunny. | 6 mph | ↑ | 47% | 30.40 "Hg | 10 mi |
| 3:50 pm | | 59 °F | Sunny. | 10 mph | ↑ | 34% | 30.39 "Hg | 10 mi |
| 2:50 pm | | 61 °F | Sunny. | 9 mph | ↑ | 31% | 30.40 "Hg | 10 mi |
| 1:50 pm | | 61 °F | Sunny. | 8 mph | ↑ | 31% | 30.42 "Hg | 10 mi |
| 12:50 pm | | 63 °F | Sunny. | 5 mph | ↑ | 32% | 30.43 "Hg | 10 mi |
| 11:55 am | | 61 °F | Sunny. | No wind | ↑ | 29% | 30.47 "Hg | 10 mi |
| 10:50 am | | 57 °F | Sunny. | No wind | ↑ | 39% | 30.50 "Hg | 10 mi |
| 9:50 am | | 52 °F | Sunny. | 6 mph | ↑ | 50% | 30.51 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||