Currently: 54 °F. Light rain. Fog. (Weather station: Ontario International Airport, USA). See more current weatherFontana Extended Forecast with high and low temperatures
°F
Time
Wind
(mph)
(mph)
Rain/Snow
()
()
Temp
(°F)
(°F)
50
54
58
62
66
70
74
78
82
86
90
94
May 4 – May 10
0.04
Lo:53
Mon, 5
Hi:65
7
Lo:53
Tue, 6
Hi:68
8
Lo:51
Wed, 7
Hi:76
8
Lo:52
Thu, 8
Hi:84
7
Lo:59
Fri, 9
Hi:90
8
Lo:61
Sat, 10
Hi:95
9
May 11 – May 17
Lo:63
Sun, 11
Hi:88
10
Lo:57
Mon, 12
Hi:84
12
Lo:55
Tue, 13
Hi:75
15
Lo:52
Wed, 14
Hi:79
10
0.18
Lo:52
Thu, 15
Hi:71
11
0.04
Lo:52
Fri, 16
Hi:70
9
Lo:51
Sat, 17
Hi:72
9
May 18 – May 24
Lo:53
Sun, 18
Hi:73
9
Lo:53
Mon, 19
Hi:73
8
Mon, May 5
65 / 53 °F
Overcast.
Feels Like: 64 °F
Humidity: 61%
Precipitation: Rain: 0.04 Snow: 0
Precipitation Chance: 16%
SW
Wind: 7 mph
2 Week Extended Forecast in Fontana, California, USA
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Mon May 5 |  | 65 / 53 °F | Overcast. | 64 °F | 7 mph | ↑ | 61% | 16% | 0.04" | 3 (Moderate) | 5:56 am | 7:37 pm |
| Tue May 6 |  | 68 / 53 °F | Breaks of sun late. | 67 °F | 8 mph | ↑ | 54% | 0% | - | 5 (Moderate) | 5:55 am | 7:37 pm |
| Wed May 7 |  | 76 / 51 °F | Sunny. | 78 °F | 8 mph | ↑ | 40% | 0% | - | 7 (High) | 5:54 am | 7:38 pm |
| Thu May 8 | | 84 / 52 °F | Increasing cloudiness. | 82 °F | 7 mph | ↑ | 30% | 0% | - | 3 (Moderate) | 5:53 am | 7:39 pm |
| Fri May 9 | | 90 / 59 °F | Sunny. | 86 °F | 8 mph | ↑ | 25% | 0% | - | 7 (High) | 5:52 am | 7:40 pm |
| Sat May 10 | | 95 / 61 °F | Afternoon clouds. | 90 °F | 9 mph | ↑ | 17% | 0% | - | 7 (High) | 5:51 am | 7:40 pm |
| Sun May 11 | | 88 / 63 °F | Cloudy. | 84 °F | 10 mph | ↑ | 22% | 0% | - | 5 (Moderate) | 5:50 am | 7:41 pm |
| Mon May 12 | | 84 / 57 °F | Morning clouds. | 81 °F | 12 mph | ↑ | 20% | 5% | - | 7 (High) | 5:50 am | 7:42 pm |
| Tue May 13 |  | 75 / 55 °F | Mostly sunny. | 77 °F | 15 mph | ↑ | 36% | 4% | - | 7 (High) | 5:49 am | 7:43 pm |
| Wed May 14 | | 79 / 52 °F | Sunny. | 77 °F | 10 mph | ↑ | 23% | 6% | - | 7 (High) | 5:48 am | 7:44 pm |
| Thu May 15 |  | 71 / 52 °F | Isolated tstorms. Overcast. | 75 °F | 11 mph | ↑ | 66% | 62% | 0.18" | 5 (Moderate) | 5:47 am | 7:44 pm |
| Fri May 16 | | 70 / 52 °F | Decreasing cloudiness. | 69 °F | 9 mph | ↑ | 36% | 43% | 0.04" | 7 (High) | 5:47 am | 7:45 pm |
| Sat May 17 | | 72 / 51 °F | Sunny. | 76 °F | 9 mph | ↑ | 30% | 3% | - | 7 (High) | 5:46 am | 7:46 pm |
| Sun May 18 | | 73 / 53 °F | Sunny. | 76 °F | 9 mph | ↑ | 27% | 4% | - | 7 (High) | 5:45 am | 7:47 pm |
| Mon May 19 |  | 73 / 53 °F | Mostly cloudy. | 76 °F | 8 mph | ↑ | 29% | 6% | - | 3 (Moderate) | 5:45 am | 7:47 pm |
| * Updated Sunday, May 4, 2025 8:23:55 pm Fontana time - Weather by CustomWeather, © 2025 | ||||||||||||