Currently: 34 °F. Light rain. Fog. (Weather station: Ontario Municipal Airport, USA). See more current weatherPast Weather in Ontario — Graph
Ontario Temperature Yesterday
Maximum temperature yesterday: 46 °F (at 12:53 pm)
Minimum temperature yesterday: 25 °F (at 11:53 pm)
Average temperature yesterday: 37 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 53 °F (Nov 21, 3:53 pm) | 100% (Nov 20, 6:53 am) | 30.51 "Hg (Nov 20, 6:53 am) |
| Low | 21 °F (Dec 1, 5:53 am) | 35% (Nov 24, 2:53 pm) | 29.93 "Hg (Nov 20, 5:41 am) |
| Average | 37 °F | 84% | 30.25 "Hg |
| * Reported Nov 19 8:53 pm — Dec 4 8:53 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 | ||
| 8:53 pm Thu, Dec 4 |  | 34 °F | Mostly cloudy. | 3 mph | ↑ | 97% | 30.28 "Hg | 10 mi |
| 8:35 pm | | 34 °F | Mostly cloudy. | 3 mph | ↑ | 97% | 30.20 "Hg | 9 mi |
| 6:53 pm |  | 33 °F | Fog. | 3 mph | ↑ | 96% | 30.29 "Hg | 6 mi |
| 6:00 pm |  | 33 °F | Light snow. Fog. | 3 mph | ↑ | 96% | 30.23 "Hg | 4 mi |
| 5:53 pm |  | 33 °F | Light snow. Fog. | 5 mph | ↑ | 96% | 30.31 "Hg | 2 mi |
| 5:22 pm |  | 33 °F | Light rain. Fog. | 6 mph | ↑ | 96% | 30.24 "Hg | 5 mi |
| 4:53 pm | | 34 °F | Light snow. Fog. | 5 mph | ↑ | 92% | 30.30 "Hg | 5 mi |
| 3:53 pm | | 38 °F | Light rain. Mostly cloudy. | 6 mph | ↑ | 76% | 30.30 "Hg | 10 mi |
| 2:53 pm |  | 39 °F | Overcast. | 3 mph | ↑ | 65% | 30.30 "Hg | 10 mi |
| 1:53 pm | | 38 °F | Overcast. | No wind | ↑ | 65% | 30.32 "Hg | 10 mi |
| 12:53 pm |  | 36 °F | Scattered clouds. | No wind | ↑ | 73% | 30.35 "Hg | 10 mi |
| 11:53 am | | 34 °F | Overcast. | No wind | ↑ | 76% | 30.39 "Hg | 10 mi |
| 10:53 am |  | 30 °F | Sunny. | No wind | ↑ | 82% | 30.42 "Hg | 10 mi |
| 9:53 am | | 27 °F | Sunny. | No wind | ↑ | 85% | 30.42 "Hg | 10 mi |
| 8:53 am |  | 24 °F | Clear. | No wind | ↑ | 88% | 30.42 "Hg | 10 mi |
| 7:53 am | | 23 °F | Clear. | 5 mph | ↑ | 92% | 30.40 "Hg | 10 mi |
| 6:53 am | | 22 °F | Clear. | 3 mph | ↑ | 96% | 30.41 "Hg | 10 mi |
| 5:53 am | | 23 °F | Clear. | No wind | ↑ | 92% | 30.40 "Hg | 10 mi |
| 4:53 am | | 23 °F | Clear. | No wind | ↑ | 92% | 30.40 "Hg | 10 mi |
| 3:53 am | | 23 °F | Clear. | No wind | ↑ | 96% | 30.39 "Hg | 10 mi |
| 2:53 am | | 24 °F | Clear. | No wind | ↑ | 91% | 30.38 "Hg | 10 mi |
| 1:53 am | | 24 °F | Clear. | No wind | ↑ | 88% | 30.39 "Hg | 10 mi |
| 12:53 am | | 27 °F | Clear. | No wind | ↑ | 89% | 30.39 "Hg | 10 mi |
| 11:53 pm Wed, Dec 3 | | 25 °F | Clear. | 5 mph | ↑ | 88% | 30.38 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||