Currently: 62 °F. Passing clouds. (Weather station: Fullerton Municipal Airport, USA). See more current weatherPast Weather in Fullerton — Graph
°F
Time
Wind
(mph)
(mph)
Temp
(°F)
(°F)
54
58
62
66
70
74
78
82
86
90
94
98
Fri, May 9
Lo:64
6 pm
Hi:70
4
Sat, May 10
Lo:63
12 am
Hi:64
1
Lo:64
6 am
Hi:91
1
Lo:93
12 pm
Hi:97
7
Lo:72
6 pm
Hi:90
4
Sun, May 11
Lo:63
12 am
Hi:70
1
Lo:64
6 am
Hi:88
2
Lo:77
12 pm
Hi:84
9
Lo:63
6 pm
Hi:72
5
Mon, May 12
Lo:61
12 am
Hi:63
5
Lo:63
6 am
Hi:70
6
Lo:66
12 pm
Hi:72
9
Lo:61
6 pm
Hi:66
6
Tue, May 13
Lo:55
12 am
Hi:61
3
Lo:57
6 am
Hi:68
5
Lo:66
12 pm
Hi:70
11
Lo:57
6 pm
Hi:64
5
Wed, May 14
Lo:55
12 am
Hi:59
1
Lo:57
6 am
Hi:70
6
Lo:72
12 pm
Hi:73
8
Lo:59
6 pm
Hi:70
4
Thu, May 15
Lo:57
12 am
Hi:59
2
Lo:57
6 am
Hi:72
5
Lo:70
12 pm
Hi:73
7
Lo:61
6 pm
Hi:66
4
Fri, May 16
Lo:61
12 am
Hi:61
2
Lo:61
6 am
Hi:70
2
Lo:68
12 pm
Hi:72
6
Lo:61
6 pm
Hi:63
6
Sat, May 17
Lo:61
12 am
Hi:61
5
Lo:61
6 am
Hi:66
7
Lo:63
12 pm
Hi:68
8
Lo:61
6 pm
Hi:64
5
Sun, May 18
Lo:57
12 am
Hi:59
2
Lo:59
6 am
Hi:72
6
Lo:70
12 pm
Hi:73
9
Lo:61
6 pm
Hi:70
4
Mon, May 19
Lo:55
12 am
Hi:61
1
Lo:57
6 am
Hi:79
1
Lo:79
12 pm
Hi:82
7
Lo:63
6 pm
Hi:77
5
Tue, May 20
Lo:59
12 am
Hi:63
0
Lo:63
6 am
Hi:84
1
Lo:84
12 pm
Hi:88
6
Lo:64
6 pm
Hi:82
4
Wed, May 21
Lo:63
12 am
Hi:64
1
Lo:63
6 am
Hi:84
1
Lo:82
12 pm
Hi:88
9
Lo:63
6 pm
Hi:81
5
Thu, May 22
Lo:61
12 am
Hi:63
2
Lo:64
6 am
Hi:75
3
Lo:72
12 pm
Hi:79
8
Lo:63
6 pm
Hi:68
4
Fri, May 23
Lo:61
12 am
Hi:63
2
Lo:61
6 am
Hi:73
4
Lo:72
12 pm
Hi:75
7
Lo:63
6 pm
Hi:68
6
Sat, May 24
Lo:63
12 am
Hi:64
4
Lo:64
6 am
Hi:72
6
Lo:72
12 pm
Hi:73
8
Lo:63
6 pm
Hi:66
7
Friday, May 9, 2025, 6:00 pm — 12:00 am
70 / 64 °F
Clear.
Humidity: 33%
Barometer: 29.92 "Hg
SSE
Wind: 4.35 mph
Fullerton Temperature Yesterday
Maximum temperature yesterday: 75 °F (at 12:53 pm)
Minimum temperature yesterday: 61 °F (at 12:53 am)
Average temperature yesterday: 66 °F
High & Low Weather Summary for the Past Weeks
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 96 °F (May 10, 12:53 pm) | 100% (May 21, 6:53 am) | 30.04 "Hg (May 21, 6:53 am) |
| Low | 55 °F (May 14, 5:53 am) | 18% (May 20, 6:53 pm) | 29.79 "Hg (May 10, 3:53 pm) |
| Average | 67 °F | 36% | 29.92 "Hg |
| * Reported May 9 9:53 pm — May 24 9:53 pm, Fullerton. Weather by CustomWeather, © 2025 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
Fullerton Weather History for the Previous 24 Hours
Scroll right to see more
| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 9:53 pm Sat, May 24 |  | 62 °F | Clear. | 6 mph | ↑ | 83% | 29.98 "Hg | 10 mi |
| 8:53 pm | | 64 °F | Clear. | 7 mph | ↑ | 75% | 29.97 "Hg | 10 mi |
| 7:53 pm | | 65 °F | Clear. | 7 mph | ↑ | 70% | 29.96 "Hg | 10 mi |
| 6:53 pm |  | 67 °F | Sunny. | 8 mph | ↑ | 63% | 29.95 "Hg | 10 mi |
| 5:53 pm | | 71 °F | Sunny. | 9 mph | ↑ | 55% | 29.94 "Hg | 10 mi |
| 4:53 pm | | 73 °F | Sunny. | 6 mph | ↑ | 53% | 29.95 "Hg | 10 mi |
| 3:53 pm | | 72 °F | Sunny. | 7 mph | ↑ | 55% | 29.96 "Hg | 10 mi |
| 2:53 pm | | 72 °F | Sunny. | 8 mph | ↑ | 55% | 29.98 "Hg | 10 mi |
| 1:53 pm |  | 71 °F | Passing clouds. | 10 mph | ↑ | 57% | 29.98 "Hg | 10 mi |
| 12:53 pm |  | 73 °F | Partly sunny. | 7 mph | ↑ | 51% | 29.99 "Hg | 10 mi |
| 11:53 am |  | 71 °F | Overcast. | 8 mph | ↑ | 55% | 29.99 "Hg | 10 mi |
| 10:53 am | | 69 °F | Overcast. | 6 mph | ↑ | 59% | 29.98 "Hg | 10 mi |
| 9:53 am | | 67 °F | Overcast. | 7 mph | ↑ | 66% | 29.98 "Hg | 10 mi |
| 8:53 am | | 65 °F | Overcast. | 6 mph | ↑ | 76% | 29.98 "Hg | 10 mi |
| 7:53 am | | 65 °F | Overcast. | 3 mph | ↑ | 73% | 29.97 "Hg | 10 mi |
| 6:53 am | | 64 °F | Overcast. | 5 mph | ↑ | 75% | 29.95 "Hg | 10 mi |
| 5:53 am | | 63 °F | Overcast. | 7 mph | ↑ | 81% | 29.93 "Hg | 10 mi |
| 4:53 am |  | 63 °F | Overcast. | 7 mph | ↑ | 84% | 29.93 "Hg | 10 mi |
| 3:53 am | | 64 °F | Mostly cloudy. | 7 mph | ↑ | 78% | 29.93 "Hg | 10 mi |
| 2:53 am | | 64 °F | Overcast. | No wind | ↑ | 78% | 29.93 "Hg | 10 mi |
| 1:53 am | | 63 °F | Overcast. | No wind | ↑ | 81% | 29.93 "Hg | 10 mi |
| 12:53 am | | 63 °F | Overcast. | 5 mph | ↑ | 33% | 29.93 "Hg | 10 mi |
| 11:53 pm Fri, May 23 | | 63 °F | Overcast. | 5 mph | ↑ | 29% | 29.92 "Hg | 10 mi |
| Weather by CustomWeather, © 2025 | ||||||||