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Weather Ontario: Current forecast

Ontario / California (CA) / United States

20.6 °C
Feels like 20.6 °C
Min 13 °C / Max 30 °C
Weather Ontario: Partly cloudy, 21 °C Partly cloudy
5.3 mph SW
Wind
6.2 mph SW
Gusts
1013 hPa
Pressure
0 mm
Precipitation
42 %
Humidity
4.4
UV index

Pollen (today)

Hazel None
Alder None
Birch High
Oak High
Grass Moderate
Mugwort None
Ragweed None
06:14 / 19:26
Sunrise / Sunset
07:30 / 22:38
Moonrise / Moonset
Waxing Crescent (3 %)
Moon phase

Updated: Apr 19, 2026, 19:26 CEST Apr 19, 2026, 10:26 PDT

Today's Summary

If you head out in Ontario today, you'll see a partly cloudy sky. The thermometer currently shows 20.6°C. Light clothing is enough – and remember sun protection if it's sunny. During the day temperatures will range between 13.4°C and 30.3°C.

Hourly forecast – Ontario, today

Apr 19, 10:00
21 °C
Partly cloudy
Ontario Apr 19, 10:00: Partly cloudy, 21 °C
Apr 19, 11:00
25 °C
Sunny
Ontario Apr 19, 11:00: Sunny, 25 °C
Apr 19, 12:00
27 °C
Sunny
Ontario Apr 19, 12:00: Sunny, 27 °C
Apr 19, 13:00
29 °C
Sunny
Ontario Apr 19, 13:00: Sunny, 29 °C
Apr 19, 14:00
30 °C
Sunny
Ontario Apr 19, 14:00: Sunny, 30 °C
Apr 19, 15:00
29 °C
Sunny
Ontario Apr 19, 15:00: Sunny, 29 °C
Apr 19, 16:00
28 °C
Sunny
Ontario Apr 19, 16:00: Sunny, 28 °C
Apr 19, 17:00
27 °C
Sunny
Ontario Apr 19, 17:00: Sunny, 27 °C
Apr 19, 18:00
25 °C
Sunny
Ontario Apr 19, 18:00: Sunny, 25 °C
Apr 19, 19:00
21 °C
Sunny
Ontario Apr 19, 19:00: Sunny, 21 °C
Apr 19, 20:00
18 °C
Clear
Ontario Apr 19, 20:00: Clear, 18 °C
Apr 19, 21:00
18 °C
Clear
Ontario Apr 19, 21:00: Clear, 18 °C
Apr 19, 22:00
18 °C
Clear
Ontario Apr 19, 22:00: Clear, 18 °C
Apr 19, 23:00
17 °C
Clear
Ontario Apr 19, 23:00: Clear, 17 °C
Apr 20, 00:00
17 °C
Clear
Ontario Apr 20, 00:00: Clear, 17 °C
Apr 20, 01:00
16 °C
Clear
Ontario Apr 20, 01:00: Clear, 16 °C
Apr 20, 02:00
16 °C
Clear
Ontario Apr 20, 02:00: Clear, 16 °C
Apr 20, 03:00
15 °C
Clear
Ontario Apr 20, 03:00: Clear, 15 °C
Apr 20, 04:00
15 °C
Clear
Ontario Apr 20, 04:00: Clear, 15 °C
Apr 20, 05:00
14 °C
Clear
Ontario Apr 20, 05:00: Clear, 14 °C
Apr 20, 06:00
14 °C
Clear
Ontario Apr 20, 06:00: Clear, 14 °C
Apr 20, 07:00
15 °C
Sunny
Ontario Apr 20, 07:00: Sunny, 15 °C
Apr 20, 08:00
17 °C
Sunny
Ontario Apr 20, 08:00: Sunny, 17 °C
Apr 20, 09:00
18 °C
Sunny
Ontario Apr 20, 09:00: Sunny, 18 °C
Time
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
Ontario Apr 19, 10:00: Partly cloudy
Ontario Apr 19, 11:00: Sunny
Ontario Apr 19, 12:00: Sunny
Ontario Apr 19, 13:00: Sunny
Ontario Apr 19, 14:00: Sunny
Ontario Apr 19, 15:00: Sunny
Ontario Apr 19, 16:00: Sunny
Ontario Apr 19, 17:00: Sunny
Ontario Apr 19, 18:00: Sunny
Ontario Apr 19, 19:00: Sunny
Ontario Apr 19, 20:00: Clear
Ontario Apr 19, 21:00: Clear
Ontario Apr 19, 22:00: Clear
Ontario Apr 19, 23:00: Clear
Ontario Apr 20, 00:00: Clear
Ontario Apr 20, 01:00: Clear
Ontario Apr 20, 02:00: Clear
Ontario Apr 20, 03:00: Clear
Ontario Apr 20, 04:00: Clear
Ontario Apr 20, 05:00: Clear
Ontario Apr 20, 06:00: Clear
Ontario Apr 20, 07:00: Sunny
Ontario Apr 20, 08:00: Sunny
Ontario Apr 20, 09:00: Sunny
Temperature (°C)
Chance of rain (%)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Precipitation
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Wind (mph)
SW
5
SW
6
SW
6
SW
7
WSW
8
WSW
10
SW
11
SW
11
SW
11
SW
9
SW
8
SW
6
SW
6
WSW
5
SW
4
SW
4
WSW
4
WSW
4
WSW
3
WSW
2
WSW
1
SW
1
SSW
1
SSW
3
Pressure (hPa)
1013
1013
1013
1012
1011
1011
1010
1010
1011
1012
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
Humidity (%)
42 %
40 %
32 %
28 %
29 %
31 %
32 %
35 %
45 %
52 %
65 %
73 %
50 %
52 %
55 %
57 %
60 %
62 %
64 %
64 %
63 %
60 %
50 %
41 %
Cloud cover (%)
50 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
0 %
3 %
8 %
0 %
8 %
4 %
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 11.3°C at night, with daytime highs up to 30.3°C.

Date
Apr 19
Apr 20
Apr 21
Apr 22
Apr 23
Apr 24
Apr 25
Apr 26
Apr 27
Apr 28
Apr 29
Apr 30
May 1
May 2
Ontario April 19, 2026: Sunny
Ontario April 20, 2026: Sunny
Ontario April 21, 2026: Patchy rain possible
Ontario April 22, 2026: Patchy rain possible
Ontario April 23, 2026: Sunny
Ontario April 24, 2026: Partly cloudy
Ontario April 25, 2026: Patchy rain possible
Ontario April 26, 2026: Patchy rain possible
Ontario April 27, 2026: Patchy rain possible
Ontario April 28, 2026: Partly cloudy
Ontario April 29, 2026: Sunny
Ontario April 30, 2026: Sunny
Ontario May 1, 2026: Sunny
Ontario May 2, 2026: Sunny
Temperature (°C)
Chance of rain (%)
0
0
89
82
0
0
0
86
0
0
0
0
0
0
Precipitation
—
—
1.3 mm
0.1 mm
—
0 mm
0.1 mm
0.1 mm
0 mm
0 mm
—
—
—
—
Wind max (mph)
11
11
16
11
11
10
12
7
11
9
11
11
10
11
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
April 19, 2026 Ontario April 19, 2026: Sunny Sunny 13 °C 30 °C 06:14 19:26 07:30 22:38 Waxing Crescent (3 %)
April 20, 2026 Ontario April 20, 2026: Sunny Sunny 14 °C 25 °C 06:13 19:26 08:23 23:49 Waxing Crescent (9 %)
April 21, 2026 Ontario April 21, 2026: Patchy rain possible Patchy rain possible 13 °C 22 °C 06:12 19:27 09:26 — Waxing Crescent (17 %)
April 22, 2026 Ontario April 22, 2026: Patchy rain possible Patchy rain possible 11 °C 20 °C 06:11 19:28 10:34 00:51 Waxing Crescent (27 %)
April 23, 2026 Ontario April 23, 2026: Sunny Sunny 12 °C 23 °C 06:10 19:29 11:46 01:42 Waxing Crescent (38 %)
April 24, 2026 Ontario April 24, 2026: Partly cloudy Partly cloudy 14 °C 22 °C 06:09 19:30 12:55 02:23 First Quarter (49 %)
April 25, 2026 Ontario April 25, 2026: Patchy rain possible Patchy rain possible 13 °C 20 °C 06:07 19:30 14:01 02:58 Waxing Moon (60 %)
April 26, 2026 Ontario April 26, 2026: Patchy rain possible Patchy rain possible 12 °C 15 °C 06:06 19:31 15:03 03:27 Waxing Moon (70 %)
April 27, 2026 Ontario April 27, 2026: Patchy rain possible Patchy rain possible 13 °C 20 °C 06:05 19:32 16:04 03:54 Waxing Moon (79 %)
April 28, 2026 Ontario April 28, 2026: Partly cloudy Partly cloudy 14 °C 24 °C 06:04 19:33 17:03 04:19 Waxing Moon (87 %)
April 29, 2026 Ontario April 29, 2026: Sunny Sunny 14 °C 26 °C 06:03 19:33 18:02 04:44 Waxing Moon (93 %)
April 30, 2026 Ontario April 30, 2026: Sunny Sunny 15 °C 25 °C 06:02 19:34 19:01 05:11 Waxing Moon (97 %)
May 1, 2026 Ontario May 1, 2026: Sunny Sunny 15 °C 25 °C 06:01 19:35 20:01 05:40 Full Moon (99 %)
May 2, 2026 Ontario May 2, 2026: Sunny Sunny 15 °C 27 °C 06:00 19:36 21:01 06:12 Waning Moon (100 %)
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