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Weather Ontario: Current forecast

Ontario / California (CA) / United States

27.2 °C
Feels like 26.4 °C
Min 13 °C / Max 35 °C
Weather Ontario: Partly cloudy, 27 °C Partly cloudy
15.1 km/h WSW
Wind
17.4 km/h WSW
Gusts
1015 hPa
Pressure
0 mm
Precipitation
42 %
Humidity
9.5
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass High
Mugwort None
Ragweed None
05:39 / 19:57
Sunrise / Sunset
23:17 / 08:29
Moonrise / Moonset
Waning Moon (83 %)
Moon phase

Updated: Jun 3, 2026, 23:09 CEST Jun 3, 2026, 14:09 PDT

Today's Summary

Right now Ontario has partly cloudy weather. The thermometer currently shows 27.2°C. UV radiation is high today – sun cream and sunglasses are essential. During the day temperatures will range between 12.5°C and 34.6°C.

Hourly forecast – Ontario, today

Jun 3, 14:00
27 °C
Partly cloudy
Ontario Jun 3, 14:00: Partly cloudy, 27 °C
Jun 3, 15:00
34 °C
Sunny
Ontario Jun 3, 15:00: Sunny, 34 °C
Jun 3, 16:00
33 °C
Sunny
Ontario Jun 3, 16:00: Sunny, 33 °C
Jun 3, 17:00
32 °C
Sunny
Ontario Jun 3, 17:00: Sunny, 32 °C
Jun 3, 18:00
29 °C
Sunny
Ontario Jun 3, 18:00: Sunny, 29 °C
Jun 3, 19:00
26 °C
Sunny
Ontario Jun 3, 19:00: Sunny, 26 °C
Jun 3, 20:00
23 °C
Clear
Ontario Jun 3, 20:00: Clear, 23 °C
Jun 3, 21:00
23 °C
Clear
Ontario Jun 3, 21:00: Clear, 23 °C
Jun 3, 22:00
22 °C
Clear
Ontario Jun 3, 22:00: Clear, 22 °C
Jun 3, 23:00
21 °C
Clear
Ontario Jun 3, 23:00: Clear, 21 °C
Jun 4, 00:00
21 °C
Clear
Ontario Jun 4, 00:00: Clear, 21 °C
Jun 4, 01:00
20 °C
Clear
Ontario Jun 4, 01:00: Clear, 20 °C
Jun 4, 02:00
19 °C
Clear
Ontario Jun 4, 02:00: Clear, 19 °C
Jun 4, 03:00
19 °C
Clear
Ontario Jun 4, 03:00: Clear, 19 °C
Jun 4, 04:00
18 °C
Clear
Ontario Jun 4, 04:00: Clear, 18 °C
Jun 4, 05:00
18 °C
Clear
Ontario Jun 4, 05:00: Clear, 18 °C
Jun 4, 06:00
20 °C
Sunny
Ontario Jun 4, 06:00: Sunny, 20 °C
Jun 4, 07:00
21 °C
Sunny
Ontario Jun 4, 07:00: Sunny, 21 °C
Jun 4, 08:00
23 °C
Sunny
Ontario Jun 4, 08:00: Sunny, 23 °C
Jun 4, 09:00
25 °C
Sunny
Ontario Jun 4, 09:00: Sunny, 25 °C
Jun 4, 10:00
27 °C
Sunny
Ontario Jun 4, 10:00: Sunny, 27 °C
Jun 4, 11:00
29 °C
Sunny
Ontario Jun 4, 11:00: Sunny, 29 °C
Jun 4, 12:00
30 °C
Sunny
Ontario Jun 4, 12:00: Sunny, 30 °C
Jun 4, 13:00
31 °C
Sunny
Ontario Jun 4, 13:00: Sunny, 31 °C
Time
14
15
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
Ontario Jun 3, 14:00: Partly cloudy
Ontario Jun 3, 15:00: Sunny
Ontario Jun 3, 16:00: Sunny
Ontario Jun 3, 17:00: Sunny
Ontario Jun 3, 18:00: Sunny
Ontario Jun 3, 19:00: Sunny
Ontario Jun 3, 20:00: Clear
Ontario Jun 3, 21:00: Clear
Ontario Jun 3, 22:00: Clear
Ontario Jun 3, 23:00: Clear
Ontario Jun 4, 00:00: Clear
Ontario Jun 4, 01:00: Clear
Ontario Jun 4, 02:00: Clear
Ontario Jun 4, 03:00: Clear
Ontario Jun 4, 04:00: Clear
Ontario Jun 4, 05:00: Clear
Ontario Jun 4, 06:00: Sunny
Ontario Jun 4, 07:00: Sunny
Ontario Jun 4, 08:00: Sunny
Ontario Jun 4, 09:00: Sunny
Ontario Jun 4, 10:00: Sunny
Ontario Jun 4, 11:00: Sunny
Ontario Jun 4, 12:00: Sunny
Ontario Jun 4, 13:00: Sunny
Temperature (°C)
Chance of rain (%)
0
0
0
0
0
0
1
1
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
Precipitation
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind (km/h)
WSW
15
WSW
16
WSW
16
WSW
16
WSW
14
WSW
12
WSW
9
WSW
7
WSW
4
WSW
4
W
4
W
4
WSW
4
W
3
W
4
W
2
W
1
WSW
2
SW
5
SW
6
SW
7
SW
9
SW
11
WSW
14
Pressure (hPa)
1015
1012
1011
1011
1011
1011
1012
1012
1013
1012
1012
1011
1011
1011
1010
1010
1011
1011
1011
1011
1010
1010
1010
1010
Humidity (%)
42 %
30 %
31 %
31 %
35 %
43 %
55 %
66 %
48 %
48 %
49 %
49 %
50 %
52 %
53 %
54 %
53 %
50 %
44 %
39 %
34 %
29 %
26 %
24 %
Cloud cover (%)
75 %
0 %
0 %
0 %
1 %
1 %
1 %
1 %
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 12.5°C at night, with daytime highs up to 34.6°C.

Date
Jun 3
Jun 4
Jun 5
Jun 6
Jun 7
Jun 8
Jun 9
Jun 10
Jun 11
Jun 12
Jun 13
Jun 14
Jun 15
Jun 16
Ontario June 3, 2026: Sunny
Ontario June 4, 2026: Sunny
Ontario June 5, 2026: Sunny
Ontario June 6, 2026: Overcast
Ontario June 7, 2026: Sunny
Ontario June 8, 2026: Sunny
Ontario June 9, 2026: Sunny
Ontario June 10, 2026: Sunny
Ontario June 11, 2026: Sunny
Ontario June 12, 2026: Sunny
Ontario June 13, 2026: Sunny
Ontario June 14, 2026: Sunny
Ontario June 15, 2026: Sunny
Ontario June 16, 2026: Sunny
Temperature (°C)
Chance of rain (%)
1
0
0
2
0
0
1
1
0
0
0
0
0
1
Precipitation
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind max (km/h)
16
18
20
18
20
18
20
17
18
17
17
17
18
17
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
June 3, 2026 Ontario June 3, 2026: Sunny Sunny 13 °C 35 °C 05:39 19:57 23:17 08:29 Waning Moon (83 %)
June 4, 2026 Ontario June 4, 2026: Sunny Sunny 18 °C 32 °C 05:39 19:58 23:50 09:28 Waning Moon (74 %)
June 5, 2026 Ontario June 5, 2026: Sunny Sunny 18 °C 32 °C 05:39 19:58 Does not rise today 10:26 Last Quarter (64 %)
June 6, 2026 Ontario June 6, 2026: Overcast Overcast 18 °C 28 °C 05:39 19:59 00:18 11:23 Last Quarter (54 %)
June 7, 2026 Ontario June 7, 2026: Sunny Sunny 16 °C 27 °C 05:38 20:00 00:44 12:20 Last Quarter (43 %)
June 8, 2026 Ontario June 8, 2026: Sunny Sunny 15 °C 27 °C 05:38 20:00 01:08 13:17 Last Quarter (33 %)
June 9, 2026 Ontario June 9, 2026: Sunny Sunny 16 °C 26 °C 05:38 20:01 01:33 14:16 Waning Crescent (24 %)
June 10, 2026 Ontario June 10, 2026: Sunny Sunny 16 °C 26 °C 05:38 20:01 01:59 15:18 Waning Crescent (15 %)
June 11, 2026 Ontario June 11, 2026: Sunny Sunny 17 °C 30 °C 05:38 20:01 02:28 16:23 Waning Crescent (8 %)
June 12, 2026 Ontario June 12, 2026: Sunny Sunny 18 °C 30 °C 05:38 20:02 03:01 17:33 New Moon (3 %)
June 13, 2026 Ontario June 13, 2026: Sunny Sunny 18 °C 32 °C 05:38 20:02 03:42 18:45 New Moon (1 %)
June 14, 2026 Ontario June 14, 2026: Sunny Sunny 18 °C 31 °C 05:38 20:03 04:33 19:56 New Moon (0 %)
June 15, 2026 Ontario June 15, 2026: Sunny Sunny 18 °C 30 °C 05:38 20:03 05:35 21:01 New Moon (2 %)
June 16, 2026 Ontario June 16, 2026: Sunny Sunny 16 °C 29 °C 05:38 20:03 06:46 21:57 Waxing Crescent (6 %)
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