Past Weather in Thunder Bay — Graph
Thunder Bay Temperature Yesterday
Maximum temperature yesterday: 68 °F (at 3:00 pm)
Minimum temperature yesterday: 41 °F (at 2:00 am)
Average temperature yesterday: 50 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 81 °F (May 9, 6:00 pm) | 100% (Apr 28, 11:00 am) | 30.47 "Hg (Apr 28, 11:00 am) |
| Low | 21 °F (Apr 30, 6:00 am) | 20% (May 9, 6:00 pm) | 29.50 "Hg (Apr 28, 11:00 pm) |
| Average | 43 °F | 74% | 30.05 "Hg |
| * Reported Apr 27 5:00 pm — May 12 5:00 pm, Thunder Bay. 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
Thunder Bay Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 5:00 pm Mon, May 12 |  | 63 °F | Partly sunny. | 18 mph | ↑ | 45% | 29.84 "Hg | 20 mi |
| 4:00 pm | | 64 °F | Partly sunny. | 15 mph | ↑ | 43% | 29.85 "Hg | 20 mi |
| 3:00 pm |  | 63 °F | Scattered clouds. | 16 mph | ↑ | 45% | 29.88 "Hg | 20 mi |
| 2:00 pm | | 61 °F | Scattered clouds. | 18 mph | ↑ | 48% | 29.90 "Hg | 20 mi |
| 1:00 pm | | 61 °F | Scattered clouds. | 15 mph | ↑ | 48% | 29.92 "Hg | 20 mi |
| 12:00 pm | | 57 °F | Partly sunny. | 15 mph | ↑ | 55% | 29.95 "Hg | 20 mi |
| 11:00 am | | 57 °F | Partly sunny. | 9 mph | ↑ | 51% | 29.98 "Hg | 20 mi |
| 10:00 am | | 54 °F | Partly sunny. | 10 mph | ↑ | 58% | 29.99 "Hg | 20 mi |
| 9:00 am | | 50 °F | Partly sunny. | 8 mph | ↑ | 67% | 30.00 "Hg | 20 mi |
| 8:00 am | | 45 °F | Partly sunny. | 2 mph | ↑ | 81% | 29.99 "Hg | 20 mi |
| 7:00 am | | 41 °F | Scattered clouds. | 2 mph | ↑ | 87% | 29.99 "Hg | 20 mi |
| 6:00 am |  | 41 °F | Passing clouds. | 8 mph | ↑ | 87% | 29.98 "Hg | 20 mi |
| 5:00 am |  | 45 °F | Clear. | 12 mph | ↑ | 81% | 29.97 "Hg | 15 mi |
| 4:00 am | | 43 °F | Clear. | 3 mph | ↑ | 81% | 29.96 "Hg | 15 mi |
| 3:00 am | | 45 °F | Clear. | No wind | ↑ | 81% | 29.95 "Hg | 15 mi |
| 2:00 am | | 45 °F | Passing clouds. | 5 mph | ↑ | 76% | 29.96 "Hg | 15 mi |
| 1:00 am | | 46 °F | Passing clouds. | 9 mph | ↑ | 71% | 29.97 "Hg | 15 mi |
| 12:16 am | | 46 °F | Passing clouds. | 12 mph | ↑ | 71% | 29.97 "Hg | 15 mi |
| 11:00 pm Sun, May 11 | | 46 °F | Passing clouds. | 8 mph | ↑ | 71% | 29.94 "Hg | 15 mi |
| 10:00 pm | | 52 °F | Passing clouds. | 7 mph | ↑ | 58% | 29.94 "Hg | 15 mi |
| 9:00 pm | | 52 °F | Broken clouds. | 7 mph | ↑ | 58% | 29.93 "Hg | 20 mi |
| 8:00 pm | | 61 °F | Partly sunny. | 12 mph | ↑ | 42% | 29.93 "Hg | 20 mi |
| 7:00 pm | | 61 °F | Scattered clouds. | 16 mph | ↑ | 39% | 29.94 "Hg | 20 mi |
| 6:00 pm | | 57 °F | Partly sunny. | 17 mph | ↑ | 44% | 29.94 "Hg | 20 mi |
| Weather by CustomWeather, © 2025 | ||||||||