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Weather Fontana: Current forecast

Fontana / California (CA) / United States

28.7 °C
Feels like 28.7 °C
Min 25 °C / Max 41 °C
Weather Fontana: Overcast, 29 °C Overcast
2.9 mph WSW
Wind
3 mph WSW
Gusts
1011 hPa
Pressure
0 mm
Precipitation
45 %
Humidity
6
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass Moderate
Mugwort Low
Ragweed Low
06:20 / 19:21
Sunrise / Sunset
19:43 / 06:56
Moonrise / Moonset
Full Moon (98 %)
Moon phase

Updated: Aug 28, 2026, 17:20 CEST Aug 28, 2026, 8:20 PDT

Today's Summary

If you head out in Fontana today, you'll see a overcast sky. The thermometer currently shows 28.7°C. Wear light, breathable clothes and drink plenty of fluids. During the day temperatures will range between 24.7°C and 40.5°C.

Hourly forecast – Fontana, today

Aug 28, 09:00
37 °C
Overcast
Fontana Aug 28, 09:00: Overcast, 37 °C
Aug 28, 10:00
39 °C
Overcast
Fontana Aug 28, 10:00: Overcast, 39 °C
Aug 28, 11:00
41 °C
Overcast
Fontana Aug 28, 11:00: Overcast, 41 °C
Aug 28, 12:00
37 °C
Sunny
Fontana Aug 28, 12:00: Sunny, 37 °C
Aug 28, 13:00
37 °C
Sunny
Fontana Aug 28, 13:00: Sunny, 37 °C
Aug 28, 14:00
36 °C
Sunny
Fontana Aug 28, 14:00: Sunny, 36 °C
Aug 28, 15:00
35 °C
Sunny
Fontana Aug 28, 15:00: Sunny, 35 °C
Aug 28, 16:00
34 °C
Sunny
Fontana Aug 28, 16:00: Sunny, 34 °C
Aug 28, 17:00
32 °C
Sunny
Fontana Aug 28, 17:00: Sunny, 32 °C
Aug 28, 18:00
31 °C
Clear
Fontana Aug 28, 18:00: Clear, 31 °C
Aug 28, 19:00
30 °C
Clear
Fontana Aug 28, 19:00: Clear, 30 °C
Aug 28, 20:00
29 °C
Clear
Fontana Aug 28, 20:00: Clear, 29 °C
Aug 28, 21:00
29 °C
Clear
Fontana Aug 28, 21:00: Clear, 29 °C
Aug 28, 22:00
29 °C
Cloudy
Fontana Aug 28, 22:00: Cloudy, 29 °C
Aug 28, 23:00
28 °C
Overcast
Fontana Aug 28, 23:00: Overcast, 28 °C
Aug 29, 00:00
28 °C
Overcast
Fontana Aug 29, 00:00: Overcast, 28 °C
Aug 29, 01:00
28 °C
Partly cloudy
Fontana Aug 29, 01:00: Partly cloudy, 28 °C
Aug 29, 02:00
27 °C
Overcast
Fontana Aug 29, 02:00: Overcast, 27 °C
Aug 29, 03:00
27 °C
Overcast
Fontana Aug 29, 03:00: Overcast, 27 °C
Aug 29, 04:00
27 °C
Clear
Fontana Aug 29, 04:00: Clear, 27 °C
Aug 29, 05:00
26 °C
Cloudy
Fontana Aug 29, 05:00: Cloudy, 26 °C
Aug 29, 06:00
28 °C
Partly cloudy
Fontana Aug 29, 06:00: Partly cloudy, 28 °C
Aug 29, 07:00
29 °C
Sunny
Fontana Aug 29, 07:00: Sunny, 29 °C
Aug 29, 08:00
31 °C
Sunny
Fontana Aug 29, 08:00: Sunny, 31 °C
Time
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
Fontana Aug 28, 09:00: Overcast
Fontana Aug 28, 10:00: Overcast
Fontana Aug 28, 11:00: Overcast
Fontana Aug 28, 12:00: Sunny
Fontana Aug 28, 13:00: Sunny
Fontana Aug 28, 14:00: Sunny
Fontana Aug 28, 15:00: Sunny
Fontana Aug 28, 16:00: Sunny
Fontana Aug 28, 17:00: Sunny
Fontana Aug 28, 18:00: Clear
Fontana Aug 28, 19:00: Clear
Fontana Aug 28, 20:00: Clear
Fontana Aug 28, 21:00: Clear
Fontana Aug 28, 22:00: Cloudy
Fontana Aug 28, 23:00: Overcast
Fontana Aug 29, 00:00: Overcast
Fontana Aug 29, 01:00: Partly cloudy
Fontana Aug 29, 02:00: Overcast
Fontana Aug 29, 03:00: Overcast
Fontana Aug 29, 04:00: Clear
Fontana Aug 29, 05:00: Cloudy
Fontana Aug 29, 06:00: Partly cloudy
Fontana Aug 29, 07:00: Sunny
Fontana Aug 29, 08:00: Sunny
Temperature (°C)
Chance of rain (%)
9
9
9
1
1
0
0
0
1
1
1
1
1
7
9
11
3
9
9
2
9
5
1
1
Precipitation
Wind (mph)
W
5
W
7
W
10
W
12
WSW
14
WSW
14
WSW
14
WSW
13
WSW
10
WSW
9
WSW
6
WSW
6
WSW
5
W
4
W
5
WSW
2
WSW
1
W
3
W
5
WSW
4
SW
2
ESE
2
SE
2
WSW
3
Pressure (hPa)
1011
1011
1010
1010
1009
1009
1009
1009
1009
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
Humidity (%)
28 %
23 %
20 %
23 %
23 %
24 %
27 %
30 %
34 %
38 %
40 %
40 %
41 %
42 %
44 %
46 %
45 %
46 %
48 %
50 %
51 %
46 %
40 %
35 %
Cloud cover (%)
100 %
100 %
100 %
22 %
6 %
1 %
0 %
2 %
0 %
2 %
2 %
1 %
5 %
76 %
92 %
100 %
29 %
92 %
88 %
0 %
81 %
52 %
8 %
4 %

14-day weather forecast – Fontana

14-day trend for Fontana: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 20.3°C at night, with daytime highs up to 40.5°C.

Date
Aug 28
Aug 29
Aug 30
Aug 31
Sep 1
Sep 2
Sep 3
Sep 4
Sep 5
Sep 6
Sep 7
Sep 8
Sep 9
Sep 10
Fontana August 28, 2026: Overcast
Fontana August 29, 2026: Sunny
Fontana August 30, 2026: Sunny
Fontana August 31, 2026: Sunny
Fontana September 1, 2026: Sunny
Fontana September 2, 2026: Sunny
Fontana September 3, 2026: Sunny
Fontana September 4, 2026: Sunny
Fontana September 5, 2026: Sunny
Fontana September 6, 2026: Sunny
Fontana September 7, 2026: Sunny
Fontana September 8, 2026: Sunny
Fontana September 9, 2026: Sunny
Fontana September 10, 2026: Sunny
Temperature (°C)
Chance of rain (%)
5
2
1
1
1
0
0
1
2
6
3
0
3
2
Precipitation
0 mm
Wind max (mph)
14
13
15
14
14
13
14
12
11
13
12
12
12
10
Date Weather Min °C Max °C Sunrise Sunset Moonrise Moonset Moon phase
August 28, 2026 Fontana August 28, 2026: Overcast Overcast 25 °C 41 °C 06:20 19:21 19:43 06:56 Full Moon (98 %)
August 29, 2026 Fontana August 29, 2026: Sunny Sunny 26 °C 35 °C 06:21 19:20 20:07 07:53 Waning Moon (94 %)
August 30, 2026 Fontana August 30, 2026: Sunny Sunny 24 °C 34 °C 06:21 19:18 20:32 08:50 Waning Moon (87 %)
August 31, 2026 Fontana August 31, 2026: Sunny Sunny 22 °C 32 °C 06:22 19:17 20:59 09:49 Waning Moon (80 %)
September 1, 2026 Fontana September 1, 2026: Sunny Sunny 22 °C 32 °C 06:23 19:16 21:30 10:51 Waning Moon (70 %)
September 2, 2026 Fontana September 2, 2026: Sunny Sunny 22 °C 31 °C 06:24 19:14 22:07 11:55 Last Quarter (60 %)
September 3, 2026 Fontana September 3, 2026: Sunny Sunny 23 °C 31 °C 06:24 19:13 22:51 13:01 Last Quarter (50 %)
September 4, 2026 Fontana September 4, 2026: Sunny Sunny 21 °C 30 °C 06:25 19:12 23:45 14:08 Last Quarter (39 %)
September 5, 2026 Fontana September 5, 2026: Sunny Sunny 21 °C 31 °C 06:26 19:10 Does not rise today 15:11 Waning Crescent (29 %)
September 6, 2026 Fontana September 6, 2026: Sunny Sunny 23 °C 33 °C 06:26 19:09 00:48 16:07 Waning Crescent (20 %)
September 7, 2026 Fontana September 7, 2026: Sunny Sunny 24 °C 33 °C 06:27 19:08 02:00 16:55 Waning Crescent (12 %)
September 8, 2026 Fontana September 8, 2026: Sunny Sunny 25 °C 35 °C 06:28 19:06 03:15 17:36 Waning Crescent (6 %)
September 9, 2026 Fontana September 9, 2026: Sunny Sunny 20 °C 31 °C 06:28 19:05 04:30 18:12 New Moon (2 %)
September 10, 2026 Fontana September 10, 2026: Sunny Sunny 24 °C 35 °C 06:29 19:03 05:43 18:44 New Moon (0 %)