Currently: 54 °F. Clear. (Weather station: Ontario International Airport, USA). See more current weatherPast Weather in Ontario — Graph
Ontario Temperature Yesterday
Maximum temperature yesterday: 67 °F (at 12:53 pm)
Minimum temperature yesterday: 49 °F (at 10:53 pm)
Average temperature yesterday: 60 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 82 °F (Nov 26, 1:53 pm) | 100% (Dec 1, 7:11 am) | 30.19 "Hg (Dec 1, 7:11 am) |
| Low | 46 °F (Dec 2, 6:53 am) | 13% (Nov 26, 1:53 pm) | 29.85 "Hg (Nov 21, 2:53 am) |
| Average | 59 °F | 54% | 30.02 "Hg |
| * Reported Nov 20 9:53 pm — Dec 5 9:53 pm, Ontario. 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
Ontario Weather History for the Previous 24 Hours
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 9:53 pm Fri, Dec 5 | | 55 °F | Clear. | No wind | ↑ | 42% | 30.07 "Hg | 10 mi |
| 8:53 pm | | 55 °F | Clear. | 3 mph | ↑ | 42% | 30.06 "Hg | 10 mi |
| 7:53 pm | | 57 °F | Clear. | 3 mph | ↑ | 37% | 30.06 "Hg | 10 mi |
| 6:53 pm | | 60 °F | Clear. | No wind | ↑ | 31% | 30.05 "Hg | 10 mi |
| 5:53 pm | | 63 °F | Clear. | 3 mph | ↑ | 25% | 30.04 "Hg | 10 mi |
| 4:53 pm | | 65 °F | Clear. | 5 mph | ↑ | 24% | 30.01 "Hg | 10 mi |
| 3:53 pm |  | 68 °F | Sunny. | 8 mph | ↑ | 24% | 30.02 "Hg | 10 mi |
| 2:53 pm | | 71 °F | Sunny. | 9 mph | ↑ | 19% | 30.02 "Hg | 10 mi |
| 1:53 pm | | 71 °F | Sunny. | 6 mph | ↑ | 19% | 30.02 "Hg | 10 mi |
| 12:53 pm | | 69 °F | Sunny. | 5 mph | ↑ | 18% | 30.02 "Hg | 10 mi |
| 11:53 am | | 67 °F | Sunny. | 6 mph | ↑ | 21% | 30.05 "Hg | 10 mi |
| 10:53 am | | 63 °F | Sunny. | 5 mph | ↑ | 26% | 30.09 "Hg | 10 mi |
| 9:53 am | | 59 °F | Sunny. | No wind | ↑ | 29% | 30.10 "Hg | 10 mi |
| 8:53 am | | 55 °F | Sunny. | 3 mph | ↑ | 37% | 30.11 "Hg | 10 mi |
| 7:53 am | | 51 °F | Sunny. | No wind | ↑ | 44% | 30.10 "Hg | 10 mi |
| 6:53 am | | 47 °F | Sunny. | No wind | ↑ | 48% | 30.10 "Hg | 10 mi |
| 5:53 am | | 46 °F | Clear. | No wind | ↑ | 50% | 30.09 "Hg | 10 mi |
| 4:53 am | | 47 °F | Clear. | No wind | ↑ | 48% | 30.08 "Hg | 10 mi |
| 3:53 am |  | 47 °F | Passing clouds. | No wind | ↑ | 50% | 30.08 "Hg | 10 mi |
| 2:53 am | | 47 °F | Clear. | 5 mph | ↑ | 50% | 30.10 "Hg | 10 mi |
| 1:53 am | | 47 °F | Clear. | 7 mph | ↑ | 50% | 30.13 "Hg | 10 mi |
| 12:53 am | | 50 °F | Clear. | 5 mph | ↑ | 43% | 30.12 "Hg | 10 mi |
| 11:53 pm Thu, Dec 4 | | 52 °F | Passing clouds. | 5 mph | ↑ | 40% | 30.12 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||