Past Weather in Ontario — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
50
54
58
62
66
70
74
78
82
86
90
Sun, Aug 3
Lo:77
12 pm
Hi:77
12
Lo:64
6 pm
Hi:77
7
Mon, Aug 4
Lo:63
12 am
Hi:66
2
Lo:63
6 am
Hi:75
2
Lo:75
12 pm
Hi:77
9
Lo:68
6 pm
Hi:79
7
Tue, Aug 5
Lo:61
12 am
Hi:68
4
Lo:61
6 am
Hi:73
5
Lo:72
12 pm
Hi:79
8
Lo:72
6 pm
Hi:79
6
Wed, Aug 6
Lo:61
12 am
Hi:72
4
Lo:61
6 am
Hi:79
7
Lo:77
12 pm
Hi:81
11
Lo:70
6 pm
Hi:81
8
Thu, Aug 7
Lo:66
12 am
Hi:70
6
Lo:66
6 am
Hi:73
6
Lo:73
12 pm
Hi:79
7
Lo:68
6 pm
Hi:79
11
Fri, Aug 8
Lo:64
12 am
Hi:70
6
Lo:64
6 am
Hi:75
9
Lo:72
12 pm
Hi:77
6
Lo:73
6 pm
Hi:75
9
Sat, Aug 9
Lo:72
12 am
Hi:73
12
Lo:72
6 am
Hi:77
9
Lo:77
12 pm
Hi:84
6
Lo:77
6 pm
Hi:82
11
Sun, Aug 10
Lo:73
12 am
Hi:77
9
Lo:73
6 am
Hi:81
8
Lo:79
12 pm
Hi:84
6
Lo:75
6 pm
Hi:84
12
Mon, Aug 11
Lo:72
12 am
Hi:77
8
Lo:72
6 am
Hi:81
6
Lo:81
12 pm
Hi:90
6
Lo:75
6 pm
Hi:84
16
Tue, Aug 12
Lo:75
12 am
Hi:77
12
Lo:77
6 am
Hi:79
9
Lo:79
12 pm
Hi:88
6
Lo:75
6 pm
Hi:79
10
Wed, Aug 13
Lo:72
12 am
Hi:77
7
Lo:72
6 am
Hi:75
5
Lo:75
12 pm
Hi:81
11
Lo:70
6 pm
Hi:79
11
Thu, Aug 14
Lo:63
12 am
Hi:70
7
Lo:63
6 am
Hi:75
6
Lo:75
12 pm
Hi:81
6
Lo:70
6 pm
Hi:81
6
Fri, Aug 15
Lo:64
12 am
Hi:70
8
Lo:64
6 am
Hi:75
8
Lo:75
12 pm
Hi:81
7
Lo:75
6 pm
Hi:81
8
Sat, Aug 16
Lo:68
12 am
Hi:75
9
Lo:68
6 am
Hi:77
4
Lo:77
12 pm
Hi:84
7
Lo:73
6 pm
Hi:84
4
Sun, Aug 17
Lo:70
12 am
Hi:75
4
Lo:64
6 am
Hi:70
7
Lo:64
12 pm
Hi:72
12
Lo:57
6 pm
Hi:72
9
Mon, Aug 18
Lo:52
12 am
Hi:57
7
Lo:52
6 am
Hi:64
9
Lo:64
12 pm
Hi:68
6
Sunday, August 3, 2025, 12:00 pm — 6:00 pm
77 / 77 °F
Mild.
Humidity: 54%
Barometer: 30.1 "Hg
NNW
Wind: 11.807 mph
Ontario Temperature Yesterday
Maximum temperature yesterday: 75 °F (at 2:00 am)
Minimum temperature yesterday: 59 °F (at 11:00 pm)
Average temperature yesterday: 69 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 89 °F (Aug 11, 4:00 pm) | 98% (Aug 16, 7:00 am) | 30.35 "Hg (Aug 16, 7:00 am) |
| Low | 51 °F (Aug 18, 7:00 am) | 34% (Aug 6, 2:00 pm) | 29.80 "Hg (Aug 13, 5:00 am) |
| Average | 73 °F | 71% | 30.09 "Hg |
| * Reported Aug 3 4:00 pm — Aug 18 4:00 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
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 4:00 pm Mon, Aug 18 |  | 69 °F | Mild. | 5 mph | ↑ | 41% | 30.20 "Hg | N/A |
| 3:00 pm | | 69 °F | Mild. | 7 mph | ↑ | 36% | 30.22 "Hg | N/A |
| 2:00 pm | | 68 °F | Mild. | 6 mph | ↑ | 34% | 30.23 "Hg | N/A |
| 1:00 pm | | 66 °F | Mild. | 7 mph | ↑ | 41% | 30.24 "Hg | N/A |
| 12:00 pm | | 64 °F | Mild. | 8 mph | ↑ | 44% | 30.25 "Hg | N/A |
| 11:00 am | | 63 °F | Mild. | 7 mph | ↑ | 47% | 30.24 "Hg | N/A |
| 10:00 am | | 61 °F | Refreshingly cool. | 8 mph | ↑ | 50% | 30.24 "Hg | N/A |
| 9:00 am | | 58 °F | Refreshingly cool. | 9 mph | ↑ | 58% | 30.24 "Hg | N/A |
| 8:00 am | | 53 °F | Cool. | 9 mph | ↑ | 69% | 30.24 "Hg | N/A |
| 7:00 am | | 51 °F | Cool. | 8 mph | ↑ | 74% | 30.22 "Hg | N/A |
| 6:00 am | | 51 °F | Cool. | 9 mph | ↑ | 72% | 30.21 "Hg | N/A |
| 5:00 am | | 52 °F | Cool. | 8 mph | ↑ | 70% | 30.19 "Hg | N/A |
| 4:00 am | | 51 °F | Cool. | 5 mph | ↑ | 76% | 30.18 "Hg | N/A |
| 3:00 am | | 53 °F | Cool. | 6 mph | ↑ | 72% | 30.16 "Hg | N/A |
| 2:00 am | | 55 °F | Cool. | 6 mph | ↑ | 66% | 30.17 "Hg | N/A |
| 1:00 am | | 56 °F | Cool. | 6 mph | ↑ | 66% | 30.16 "Hg | N/A |
| 12:00 am | | 58 °F | Cool. | 9 mph | ↑ | 60% | 30.14 "Hg | N/A |
| 11:00 pm Sun, Aug 17 | | 59 °F | Cool. | 7 mph | ↑ | 63% | 30.13 "Hg | N/A |
| 10:00 pm | | 62 °F | Refreshingly cool. | 8 mph | ↑ | 60% | 30.10 "Hg | N/A |
| 9:00 pm | | 64 °F | Mild. | 7 mph | ↑ | 57% | 30.07 "Hg | N/A |
| 8:00 pm | | 69 °F | Mild. | 8 mph | ↑ | 48% | 30.04 "Hg | N/A |
| 7:00 pm | | 72 °F | Mild. | 10 mph | ↑ | 40% | 30.03 "Hg | N/A |
| 6:00 pm | | 72 °F | Mild. | 10 mph | ↑ | 47% | 30.01 "Hg | N/A |
| 5:00 pm | | 72 °F | Mild. | 14 mph | ↑ | 54% | 30.00 "Hg | N/A |
| Weather by CustomWeather, © 2025 | ||||||||