Currently: 51 °F. Mostly cloudy. (Weather station: Ontario International Airport, USA). See more current weatherPast Weather in Ontario — Graph
Ontario Temperature Yesterday
Maximum temperature yesterday: 77 °F (at 1:53 pm)
Minimum temperature yesterday: 50 °F (at 2:53 am)
Average temperature yesterday: 62 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 84 °F (Jan 14, 12:53 pm) | 93% (Jan 8, 6:18 am) | 30.40 "Hg (Jan 8, 6:18 am) |
| Low | 43 °F (Jan 11, 2:53 am) | 11% (Jan 14, 11:53 am) | 29.85 "Hg (Jan 7, 3:53 pm) |
| Average | 60 °F | 40% | 30.09 "Hg |
| * Reported Jan 6 5:53 am — Jan 21 5:53 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 | ||
| 5:53 am Wed, Jan 21 |  | 50 °F | Passing clouds. | No wind | ↑ | 80% | 30.07 "Hg | 9 mi |
| 4:53 am | | 50 °F | Passing clouds. | No wind | ↑ | 77% | 30.06 "Hg | 10 mi |
| 3:53 am | | 50 °F | Passing clouds. | No wind | ↑ | 71% | 30.06 "Hg | 10 mi |
| 2:53 am | | 52 °F | Passing clouds. | No wind | ↑ | 66% | 30.06 "Hg | 10 mi |
| 1:53 am | | 53 °F | Passing clouds. | No wind | ↑ | 64% | 30.06 "Hg | 10 mi |
| 12:53 am | | 55 °F | Passing clouds. | 6 mph | ↑ | 59% | 30.05 "Hg | 10 mi |
| 11:53 pm Tue, Jan 20 | | 56 °F | Passing clouds. | 3 mph | ↑ | 58% | 30.05 "Hg | 10 mi |
| 10:53 pm | | 60 °F | Passing clouds. | 3 mph | ↑ | 49% | 30.05 "Hg | 10 mi |
| 9:53 pm | | 61 °F | Passing clouds. | No wind | ↑ | 50% | 30.04 "Hg | 10 mi |
| 8:53 pm | | 62 °F | Passing clouds. | No wind | ↑ | 56% | 30.05 "Hg | 10 mi |
| 7:53 pm | | 63 °F | Passing clouds. | 3 mph | ↑ | 58% | 30.04 "Hg | 10 mi |
| 6:53 pm | | 67 °F | Passing clouds. | 5 mph | ↑ | 45% | 30.03 "Hg | 10 mi |
| 5:53 pm | | 69 °F | Passing clouds. | 5 mph | ↑ | 47% | 30.03 "Hg | 10 mi |
| 4:53 pm | | 70 °F | Partly sunny. | 6 mph | ↑ | 31% | 30.03 "Hg | 10 mi |
| 3:53 pm | | 73 °F | Partly sunny. | 5 mph | ↑ | 27% | 30.01 "Hg | 10 mi |
| 2:53 pm | | 77 °F | Partly sunny. | 6 mph | ↑ | 23% | 30.01 "Hg | 10 mi |
| 1:53 pm | | 77 °F | Partly sunny. | 5 mph | ↑ | 20% | 30.01 "Hg | 10 mi |
| 12:53 pm | | 76 °F | Partly sunny. | No wind | ↑ | 19% | 30.04 "Hg | 10 mi |
| 11:53 am | | 73 °F | Partly sunny. | No wind | ↑ | 22% | 30.07 "Hg | 10 mi |
| 10:53 am | | 69 °F | Partly sunny. | 5 mph | ↑ | 30% | 30.10 "Hg | 10 mi |
| 9:53 am | | 66 °F | Partly sunny. | No wind | ↑ | 32% | 30.09 "Hg | 10 mi |
| 8:53 am | | 61 °F | Partly sunny. | No wind | ↑ | 41% | 30.10 "Hg | 10 mi |
| 7:53 am |  | 54 °F | Passing clouds. | No wind | ↑ | 47% | 30.09 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||