Dailymet

Weather Ontario: Current forecast

Ontario / California (CA) / United States

22.9 °C
Feels like 20.9 °C
Min 16 °C / Max 35 °C
Weather Ontario: Clear, 23 °C Clear
12.6 km/h SW
Wind
13.1 km/h SW
Gusts
1014 hPa
Pressure
0 mm
Precipitation
49 %
Humidity
0
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass Moderate
Mugwort High
Ragweed High
06:24 / 19:16
Sunrise / Sunset
21:31 / 10:52
Moonrise / Moonset
Waning Moon (70 %)
Moon phase

Updated: Sep 2, 2026, 5:41 CEST Sep 1, 2026, 20:41 PDT

Today's Summary

If you head out in Ontario today, you'll see a clear sky. The thermometer currently shows 22.9°C. Light clothing is enough – and remember sun protection if it's sunny. During the day temperatures will range between 15.6°C and 34.8°C.

Hourly forecast – Ontario, today

Sep 1, 21:00
18 °C
Clear
Ontario Sep 1, 21:00: Clear, 18 °C
Sep 1, 22:00
17 °C
Clear
Ontario Sep 1, 22:00: Clear, 17 °C
Sep 1, 23:00
16 °C
Clear
Ontario Sep 1, 23:00: Clear, 16 °C
Sep 2, 00:00
16 °C
Clear
Ontario Sep 2, 00:00: Clear, 16 °C
Sep 2, 01:00
15 °C
Clear
Ontario Sep 2, 01:00: Clear, 15 °C
Sep 2, 02:00
19 °C
Clear
Ontario Sep 2, 02:00: Clear, 19 °C
Sep 2, 03:00
18 °C
Clear
Ontario Sep 2, 03:00: Clear, 18 °C
Sep 2, 04:00
18 °C
Clear
Ontario Sep 2, 04:00: Clear, 18 °C
Sep 2, 05:00
18 °C
Sunny
Ontario Sep 2, 05:00: Sunny, 18 °C
Sep 2, 06:00
19 °C
Sunny
Ontario Sep 2, 06:00: Sunny, 19 °C
Sep 2, 07:00
21 °C
Sunny
Ontario Sep 2, 07:00: Sunny, 21 °C
Sep 2, 08:00
23 °C
Sunny
Ontario Sep 2, 08:00: Sunny, 23 °C
Sep 2, 09:00
24 °C
Sunny
Ontario Sep 2, 09:00: Sunny, 24 °C
Sep 2, 10:00
26 °C
Sunny
Ontario Sep 2, 10:00: Sunny, 26 °C
Sep 2, 11:00
27 °C
Sunny
Ontario Sep 2, 11:00: Sunny, 27 °C
Sep 2, 12:00
28 °C
Sunny
Ontario Sep 2, 12:00: Sunny, 28 °C
Sep 2, 13:00
28 °C
Sunny
Ontario Sep 2, 13:00: Sunny, 28 °C
Sep 2, 14:00
28 °C
Sunny
Ontario Sep 2, 14:00: Sunny, 28 °C
Sep 2, 15:00
27 °C
Sunny
Ontario Sep 2, 15:00: Sunny, 27 °C
Sep 2, 16:00
26 °C
Sunny
Ontario Sep 2, 16:00: Sunny, 26 °C
Sep 2, 17:00
24 °C
Sunny
Ontario Sep 2, 17:00: Sunny, 24 °C
Sep 2, 18:00
23 °C
Clear
Ontario Sep 2, 18:00: Clear, 23 °C
Sep 2, 19:00
22 °C
Clear
Ontario Sep 2, 19:00: Clear, 22 °C
Sep 2, 20:00
22 °C
Clear
Ontario Sep 2, 20:00: Clear, 22 °C
Time
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
Ontario Sep 1, 21:00: Clear
Ontario Sep 1, 22:00: Clear
Ontario Sep 1, 23:00: Clear
Ontario Sep 2, 00:00: Clear
Ontario Sep 2, 01:00: Clear
Ontario Sep 2, 02:00: Clear
Ontario Sep 2, 03:00: Clear
Ontario Sep 2, 04:00: Clear
Ontario Sep 2, 05:00: Sunny
Ontario Sep 2, 06:00: Sunny
Ontario Sep 2, 07:00: Sunny
Ontario Sep 2, 08:00: Sunny
Ontario Sep 2, 09:00: Sunny
Ontario Sep 2, 10:00: Sunny
Ontario Sep 2, 11:00: Sunny
Ontario Sep 2, 12:00: Sunny
Ontario Sep 2, 13:00: Sunny
Ontario Sep 2, 14:00: Sunny
Ontario Sep 2, 15:00: Sunny
Ontario Sep 2, 16:00: Sunny
Ontario Sep 2, 17:00: Sunny
Ontario Sep 2, 18:00: Clear
Ontario Sep 2, 19:00: Clear
Ontario Sep 2, 20:00: Clear
Temperature (°C)
Chance of rain (%)
6
7
9
9
7
3
3
3
3
2
1
1
1
0
0
0
0
0
0
0
0
1
1
1
Precipitation
Wind (km/h)
SW
7
SW
6
SW
5
SW
4
SSW
3
SW
4
SW
4
SSW
3
SW
3
SW
4
SSW
3
SW
5
SW
7
WSW
9
WSW
13
WSW
16
WSW
17
SW
18
SW
18
SW
19
WSW
17
SW
13
SW
11
SW
8
Pressure (hPa)
1015
1015
1016
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1015
1014
1014
1013
1012
1012
1013
1013
1013
1014
1015
Humidity (%)
70 %
75 %
79 %
79 %
73 %
56 %
58 %
59 %
58 %
52 %
44 %
37 %
31 %
25 %
21 %
19 %
19 %
20 %
22 %
24 %
28 %
31 %
33 %
36 %
Cloud cover (%)
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %

14-day weather forecast – Ontario

14-day trend for Ontario: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 15.2°C at night, with daytime highs up to 34.8°C.

Date
Sep 1
Sep 2
Sep 3
Sep 4
Sep 5
Sep 6
Sep 7
Sep 8
Sep 9
Sep 10
Sep 11
Sep 12
Sep 13
Sep 14
Ontario September 1, 2026: Sunny
Ontario September 2, 2026: Sunny
Ontario September 3, 2026: Sunny
Ontario September 4, 2026: Sunny
Ontario September 5, 2026: Sunny
Ontario September 6, 2026: Overcast
Ontario September 7, 2026: Patchy rain possible
Ontario September 8, 2026: Sunny
Ontario September 9, 2026: Sunny
Ontario September 10, 2026: Sunny
Ontario September 11, 2026: Sunny
Ontario September 12, 2026: Sunny
Ontario September 13, 2026: Sunny
Ontario September 14, 2026: Sunny
Temperature (°C)
Chance of rain (%)
3
1
1
2
2
57
63
5
2
2
4
4
2
1
Precipitation
1.9 mm
2.4 mm
Wind max (km/h)
19
19
19
19
18
12
18
19
21
17
17
16
18
17
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
September 1, 2026 Ontario September 1, 2026: Sunny Sunny 16 °C 35 °C 06:24 19:16 21:31 10:52 Waning Moon (70 %)
September 2, 2026 Ontario September 2, 2026: Sunny Sunny 15 °C 28 °C 06:24 19:15 22:08 11:56 Last Quarter (60 %)
September 3, 2026 Ontario September 3, 2026: Sunny Sunny 18 °C 27 °C 06:25 19:14 22:52 13:02 Last Quarter (50 %)
September 4, 2026 Ontario September 4, 2026: Sunny Sunny 18 °C 27 °C 06:26 19:12 23:46 14:09 Last Quarter (39 %)
September 5, 2026 Ontario September 5, 2026: Sunny Sunny 19 °C 30 °C 06:27 19:11 Does not rise today 15:11 Waning Crescent (29 %)
September 6, 2026 Ontario September 6, 2026: Overcast Overcast 23 °C 28 °C 06:27 19:10 00:49 16:08 Waning Crescent (20 %)
September 7, 2026 Ontario September 7, 2026: Patchy rain possible Patchy rain possible 24 °C 30 °C 06:28 19:08 02:01 16:56 Waning Crescent (12 %)
September 8, 2026 Ontario September 8, 2026: Sunny Sunny 24 °C 33 °C 06:29 19:07 03:15 17:37 Waning Crescent (6 %)
September 9, 2026 Ontario September 9, 2026: Sunny Sunny 23 °C 30 °C 06:29 19:06 04:31 18:13 New Moon (2 %)
September 10, 2026 Ontario September 10, 2026: Sunny Sunny 19 °C 27 °C 06:30 19:04 05:44 18:45 New Moon (0 %)
September 11, 2026 Ontario September 11, 2026: Sunny Sunny 18 °C 26 °C 06:31 19:03 06:55 19:15 New Moon (0 %)
September 12, 2026 Ontario September 12, 2026: Sunny Sunny 17 °C 25 °C 06:31 19:01 08:05 19:45 New Moon (3 %)
September 13, 2026 Ontario September 13, 2026: Sunny Sunny 17 °C 27 °C 06:32 19:00 09:14 20:16 Waxing Crescent (8 %)
September 14, 2026 Ontario September 14, 2026: Sunny Sunny 20 °C 31 °C 06:33 18:59 10:23 20:51 Waxing Crescent (14 %)