Currently: 48 °F. Sunny. (Weather station: Ontario Municipal Airport, USA). See more current weatherPast Weather in Ontario — Graph
Ontario Temperature Yesterday
Maximum temperature yesterday: 80 °F (at 5:53 pm)
Minimum temperature yesterday: 38 °F (at 7:53 am)
Average temperature yesterday: 57 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 80 °F (Mar 20, 5:53 pm) | 96% (Mar 8, 1:53 am) | 30.53 "Hg (Mar 8, 1:53 am) |
| Low | 24 °F (Mar 17, 6:53 am) | 23% (Mar 19, 3:53 pm) | 29.80 "Hg (Mar 14, 6:53 am) |
| Average | 47 °F | 57% | 30.17 "Hg |
| * Reported Mar 6 7:53 am — Mar 21 8:53 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 | ||
| 8:53 am Sat, Mar 21 | | 48 °F | Sunny. | 3 mph | ↑ | 80% | 29.96 "Hg | 10 mi |
| 7:53 am |  | 49 °F | Clear. | No wind | ↑ | 74% | 29.92 "Hg | 10 mi |
| 6:53 am | | 49 °F | Clear. | 3 mph | ↑ | 71% | 29.91 "Hg | 10 mi |
| 5:53 am | | 51 °F | Clear. | 5 mph | ↑ | 69% | 29.88 "Hg | 10 mi |
| 4:53 am | | 51 °F | Clear. | No wind | ↑ | 69% | 29.88 "Hg | 10 mi |
| 3:53 am | | 51 °F | Clear. | 7 mph | ↑ | 69% | 29.89 "Hg | 10 mi |
| 2:53 am | | 53 °F | Clear. | 7 mph | ↑ | 64% | 29.89 "Hg | 10 mi |
| 1:53 am | | 58 °F | Clear. | 9 mph | ↑ | 56% | 29.90 "Hg | 10 mi |
| 12:53 am | | 59 °F | Clear. | No wind | ↑ | 54% | 29.93 "Hg | 10 mi |
| 11:53 pm Fri, Mar 20 | | 55 °F | Clear. | 6 mph | ↑ | 64% | 29.94 "Hg | 10 mi |
| 10:53 pm | | 58 °F | Clear. | 5 mph | ↑ | 58% | 29.94 "Hg | 10 mi |
| 9:53 pm | | 61 °F | Clear. | 3 mph | ↑ | 52% | 29.94 "Hg | 10 mi |
| 8:53 pm | | 66 °F | Sunny. | 3 mph | ↑ | 40% | 29.94 "Hg | 10 mi |
| 7:53 pm | | 72 °F | Sunny. | No wind | ↑ | 31% | 29.94 "Hg | 10 mi |
| 6:53 pm | | 79 °F | Sunny. | 5 mph | ↑ | 25% | 29.95 "Hg | 10 mi |
| 5:53 pm | | 80 °F | Sunny. | 3 mph | ↑ | 24% | 29.98 "Hg | 10 mi |
| 4:53 pm | | 78 °F | Sunny. | 6 mph | ↑ | 28% | 30.02 "Hg | 10 mi |
| 3:53 pm | | 76 °F | Sunny. | 6 mph | ↑ | 31% | 30.05 "Hg | 10 mi |
| 2:53 pm | | 77 °F | Sunny. | 5 mph | ↑ | 30% | 30.09 "Hg | 10 mi |
| 1:53 pm | | 70 °F | Sunny. | No wind | ↑ | 35% | 30.14 "Hg | 10 mi |
| 12:53 pm | | 67 °F | Sunny. | No wind | ↑ | 36% | 30.18 "Hg | 10 mi |
| 11:53 am | | 60 °F | Sunny. | No wind | ↑ | 46% | 30.21 "Hg | 10 mi |
| 10:53 am | | 55 °F | Sunny. | No wind | ↑ | 55% | 30.24 "Hg | 10 mi |
| Weather by CustomWeather, © 2026 | ||||||||