Currently: 28 °F. Overcast. (Weather station: Ontario Municipal Airport, USA). See more current weatherPast Weather in Ontario — Graph
Ontario Temperature Yesterday
Maximum temperature yesterday: 29 °F (at 11:53 am)
Minimum temperature yesterday: 27 °F (at 4:53 am)
Average temperature yesterday: 28 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 50 °F (Jan 7, 12:53 am) | 100% (Jan 6, 8:16 am) | 30.85 "Hg (Jan 6, 8:16 am) |
| Low | 22 °F (Jan 11, 7:53 am) | 41% (Jan 8, 1:53 pm) | 29.78 "Hg (Jan 7, 9:53 pm) |
| Average | 31 °F | 87% | 30.51 "Hg |
| * Reported Jan 6 6:16 am — Jan 21 6:53 am, Ontario. 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
Ontario Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 6:53 am Wed, Jan 21 |  | 28 °F | Overcast. | 5 mph | ↑ | 85% | 30.47 "Hg | 9 mi |
| 5:53 am | | 28 °F | Overcast. | 5 mph | ↑ | 89% | 30.48 "Hg | 9 mi |
| 4:53 am | | 28 °F | Overcast. | 3 mph | ↑ | 85% | 30.50 "Hg | 9 mi |
| 3:53 am | | 28 °F | Overcast. | 3 mph | ↑ | 85% | 30.51 "Hg | 10 mi |
| 2:53 am | | 28 °F | Overcast. | 6 mph | ↑ | 85% | 30.51 "Hg | 10 mi |
| 1:53 am | | 28 °F | Overcast. | 5 mph | ↑ | 81% | 30.51 "Hg | 10 mi |
| 12:53 am | | 28 °F | Overcast. | 3 mph | ↑ | 85% | 30.52 "Hg | 10 mi |
| 11:53 pm Tue, Jan 20 | | 28 °F | Overcast. | No wind | ↑ | 81% | 30.53 "Hg | 10 mi |
| 10:53 pm | | 28 °F | Overcast. | No wind | ↑ | 81% | 30.53 "Hg | 10 mi |
| 9:53 pm | | 28 °F | Overcast. | No wind | ↑ | 81% | 30.52 "Hg | 10 mi |
| 8:53 pm | | 28 °F | Overcast. | No wind | ↑ | 81% | 30.50 "Hg | 10 mi |
| 7:53 pm | | 29 °F | Overcast. | No wind | ↑ | 79% | 30.50 "Hg | 10 mi |
| 7:28 pm | | 29 °F | Overcast. | No wind | ↑ | 79% | 30.42 "Hg | 10 mi |
| 6:53 pm | | 29 °F | Overcast. | 3 mph | ↑ | 79% | 30.50 "Hg | 10 mi |
| 5:53 pm |  | 29 °F | Overcast. | No wind | ↑ | 79% | 30.50 "Hg | 10 mi |
| 4:53 pm | | 29 °F | Overcast. | 5 mph | ↑ | 79% | 30.50 "Hg | 10 mi |
| 3:53 pm | | 29 °F | Overcast. | 5 mph | ↑ | 79% | 30.49 "Hg | 10 mi |
| 2:53 pm | | 29 °F | Overcast. | 3 mph | ↑ | 79% | 30.49 "Hg | 10 mi |
| 2:03 pm | | 29 °F | Overcast. | 5 mph | ↑ | 79% | 30.42 "Hg | 10 mi |
| 1:35 pm | | 29 °F | Overcast. | 5 mph | ↑ | 79% | 30.43 "Hg | 10 mi |
| 12:53 pm | | 29 °F | Overcast. | 5 mph | ↑ | 82% | 30.51 "Hg | 10 mi |
| 12:06 pm | | 29 °F | Low clouds. | 5 mph | ↑ | 82% | 30.45 "Hg | 10 mi |
| 11:53 am | | 29 °F | Overcast. | 6 mph | ↑ | 85% | 30.53 "Hg | 10 mi |
| 10:53 am | | 28 °F | Overcast. | 3 mph | ↑ | 89% | 30.54 "Hg | 9 mi |
| 10:31 am | | 28 °F | Cloudy. | 3 mph | ↑ | 89% | 30.47 "Hg | 8 mi |
| 10:23 am | | 28 °F | Mostly cloudy. | 3 mph | ↑ | 89% | 30.47 "Hg | 10 mi |
| 9:53 am | | 28 °F | Overcast. | 5 mph | ↑ | 89% | 30.53 "Hg | 9 mi |
| 8:53 am | | 27 °F | Overcast. | 3 mph | ↑ | 89% | 30.53 "Hg | 10 mi |
| 8:37 am | | 27 °F | Overcast. | 5 mph | ↑ | 89% | 30.44 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||