Currently: 23 °F. Light snow. Mostly cloudy. (Weather station: Sarnia Airport, Canada). See more current weatherPast Weather in Sarnia — Graph
Sarnia Temperature Yesterday
Maximum temperature yesterday: 16 °F (at 3:00 pm)
Minimum temperature yesterday: 3 °F (at 3:00 am)
Average temperature yesterday: 8 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 61 °F (Jan 9, 12:00 pm) | 100% (Jan 6, 11:28 am) | 30.36 "Hg (Jan 6, 11:28 am) |
| Low | -2 °F (Jan 15, 9:00 pm) | 48% (Jan 20, 3:00 pm) | 29.41 "Hg (Jan 13, 2:30 pm) |
| Average | 27 °F | 81% | 29.85 "Hg |
| * Reported Jan 6 10:00 am — Jan 21 10:18 am, Sarnia. 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
Sarnia Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 10:18 am Wed, Jan 21 | | 23 °F | Light snow. Ice fog. | 12 mph | ↑ | 86% | 29.99 "Hg | 1 mi |
| 10:04 am | | 23 °F | Light snow. Ice fog. | 13 mph | ↑ | 86% | 29.99 "Hg | 1 mi |
| 9:00 am | | 21 °F | Light snow. Overcast. | 10 mph | ↑ | 86% | 30.03 "Hg | 1 mi |
| 8:25 am | | 19 °F | Light snow. Ice fog. | 12 mph | ↑ | 93% | 30.06 "Hg | 1 mi |
| 8:00 am | | 19 °F | Light snow. Overcast. | 13 mph | ↑ | 86% | 30.07 "Hg | 2 mi |
| 7:59 am | | 19 °F | Light snow. Overcast. | 14 mph | ↑ | 86% | 30.07 "Hg | 2 mi |
| 7:19 am | | 18 °F | Light snow. Overcast. | 12 mph | ↑ | 86% | 30.10 "Hg | 2 mi |
| 7:00 am | | 18 °F | Light snow. Mostly cloudy. | 13 mph | ↑ | 86% | 30.12 "Hg | 4 mi |
| 6:58 am |  | 18 °F | Light snow. Mostly cloudy. | 12 mph | ↑ | 86% | 30.12 "Hg | 5 mi |
| 6:33 am | | 18 °F | Light snow. Mostly cloudy. | 13 mph | ↑ | 86% | 30.13 "Hg | 6 mi |
| 6:03 am | | 18 °F | Light snow. Overcast. | 12 mph | ↑ | 86% | 30.17 "Hg | 2 mi |
| 5:17 am | | 18 °F | Light snow. Overcast. | 9 mph | ↑ | 73% | 30.19 "Hg | 5 mi |
| 5:00 am | | 16 °F | Light snow. Overcast. | 8 mph | ↑ | 73% | 30.21 "Hg | 9 mi |
| 4:50 am | | 16 °F | Light snow. Overcast. | 8 mph | ↑ | 67% | 30.22 "Hg | 9 mi |
| 4:00 am |  | 14 °F | Overcast. | 8 mph | ↑ | 73% | 30.24 "Hg | 9 mi |
| 3:00 am | | 12 °F | Overcast. | 9 mph | ↑ | 73% | 30.27 "Hg | 9 mi |
| 2:00 am |  | 10 °F | Passing clouds. | 7 mph | ↑ | 79% | 30.28 "Hg | 9 mi |
| 1:00 am |  | 10 °F | Partly cloudy. | 8 mph | ↑ | 67% | 30.32 "Hg | 9 mi |
| 12:00 am | | 10 °F | Passing clouds. | 7 mph | ↑ | 67% | 30.33 "Hg | 9 mi |
| 11:00 pm Tue, Jan 20 | | 10 °F | Partly cloudy. | 10 mph | ↑ | 61% | 30.35 "Hg | 9 mi |
| 10:00 pm |  | 12 °F | Clear. | 13 mph | ↑ | 57% | 30.36 "Hg | 9 mi |
| 9:00 pm | | 12 °F | Passing clouds. | 13 mph | ↑ | 62% | 30.36 "Hg | 9 mi |
| 8:00 pm | | 12 °F | Passing clouds. | 13 mph | ↑ | 62% | 30.35 "Hg | 9 mi |
| 7:00 pm | | 12 °F | Passing clouds. | 9 mph | ↑ | 57% | 30.34 "Hg | 9 mi |
| 6:00 pm | | 14 °F | Passing clouds. | 10 mph | ↑ | 52% | 30.32 "Hg | 9 mi |
| 5:00 pm |  | 14 °F | Sunny. | 13 mph | ↑ | 52% | 30.32 "Hg | 9 mi |
| 4:00 pm |  | 16 °F | Partly sunny. | 13 mph | ↑ | 48% | 30.31 "Hg | 9 mi |
| 3:00 pm |  | 16 °F | Passing clouds. | 17 mph | ↑ | 48% | 30.31 "Hg | 9 mi |
| 2:00 pm | | 14 °F | Partly sunny. | 16 mph | ↑ | 52% | 30.31 "Hg | 9 mi |
| 1:00 pm | | 12 °F | Partly sunny. | 16 mph | ↑ | 57% | 30.32 "Hg | 9 mi |
| 12:00 pm | | 10 °F | Scattered clouds. | 15 mph | ↑ | 61% | 30.34 "Hg | 9 mi |
| 11:00 am | | 9 °F | Sunny. | 13 mph | ↑ | 61% | 30.35 "Hg | 9 mi |
| Weather by CustomWeather, © 2026 | ||||||||