Fullerton Hourly Weather Forecast
Next 48 Hours
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Test our newly developed Weather Chatbot. It provides up to 10 days of forecast information!Tue, Oct 6th 2026
Sunny skies in the morning, with Clear conditions expected by night. Warming trend from 77°F to 98°. Light winds, shifting from SE to S at 4.6 mph, as humidity ranges 20% to 42%, and an avg barometric pressure of 29.82 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
5 AM
78°F
77°F
40%
2.9 SE
29.83
52°F
0
1%
6 AM
77°F
77°F
40%
2.7 SE
29.84
51°F
0
1%
7 AM
77°F
76°F
40%
2.9 SE
29.85
51°F
0
1%
8 AM
83°F
83°F
35%
2.5 SE
29.86
53°F
0.3
1%
9 AM
88°F
88°F
30%
1.1 SSE
29.87
52°F
1.3
0%
10 AM
91°F
90°F
26%
2 WSW
29.86
52°F
3.1
0%
11 AM
94°F
92°F
24%
3.6 WSW
29.85
51°F
5.2
0%
12 PM
96°F
93°F
22%
5.1 WSW
29.84
50°F
6.8
0%
1 PM
97°F
94°F
20%
6.9 WSW
29.81
50°F
7.3
0%
2 PM
98°F
93°F
21%
8.7 WSW
29.78
51°F
6.4
0%
3 PM
97°F
92°F
22%
9.8 WSW
29.76
52°F
4.6
0%
4 PM
96°F
92°F
23%
8.3 WSW
29.76
52°F
2.5
0%
5 PM
94°F
91°F
25%
6.9 SW
29.76
53°F
0.9
0%
6 PM
92°F
89°F
28%
6 SW
29.77
54°F
0.2
0%
7 PM
88°F
87°F
34%
4.7 SW
29.79
56°F
0
1%
8 PM
85°F
85°F
36%
3.1 SSW
29.8
56°F
0
1%
9 PM
84°F
84°F
38%
3.4 S
29.82
55°F
0
1%
10 PM
83°F
82°F
39%
3.8 S
29.82
55°F
0
1%
11 PM
81°F
81°F
42%
3.1 S
29.83
55°F
0
1%
Wed, Oct 7th 2026
Sunny skies early, becoming Clear conditions later. Warming trend from 75°F to 95°. Light winds, shifting from S to SSW at 3.8 mph, as humidity fluctuates between 23% to 48%, and an avg barometric pressure of 29.82 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
12 AM
80°F
80°F
44%
3.1 S
29.82
56°F
0
1%
1 AM
79°F
79°F
46%
3.1 SSW
29.82
56°F
0
1%
2 AM
78°F
79°F
48%
1.8 SSW
29.82
56°F
0
2%
3 AM
76°F
78°F
48%
0.7 SW
29.81
56°F
0
2%
4 AM
76°F
77°F
47%
0.4 SE
29.8
54°F
0
1%
5 AM
76°F
76°F
46%
0.9 SE
29.81
54°F
0
1%
6 AM
76°F
75°F
46%
1.8 SSE
29.82
53°F
0
1%
7 AM
75°F
75°F
45%
1.6 SE
29.83
52°F
0
1%
8 AM
82°F
83°F
38%
1.1 SE
29.84
54°F
0.3
1%
9 AM
86°F
87°F
33%
1.6 WSW
29.85
54°F
1.3
1%
10 AM
89°F
88°F
30%
3.1 WSW
29.84
53°F
3.1
0%
11 AM
92°F
90°F
27%
4.9 WSW
29.84
53°F
5.2
0%
12 PM
94°F
91°F
25%
6.5 WSW
29.83
53°F
6.8
0%
1 PM
95°F
92°F
24%
7.6 WSW
29.81
53°F
7.3
0%
2 PM
95°F
92°F
23%
8.3 WSW
29.79
52°F
6.4
0%
3 PM
95°F
91°F
23%
8.5 WSW
29.78
51°F
4.6
0%
4 PM
94°F
90°F
24%
7.8 WSW
29.78
51°F
2.5
0%
5 PM
92°F
88°F
26%
7.2 WSW
29.77
52°F
0.9
0%
6 PM
89°F
87°F
30%
5.4 WSW
29.79
54°F
0.2
0%
7 PM
85°F
84°F
36%
4.3 SW
29.8
55°F
0
1%
8 PM
83°F
82°F
40%
3.6 SSW
29.82
56°F
0
1%
9 PM
81°F
81°F
44%
3.6 SSW
29.83
57°F
0
1%
10 PM
80°F
80°F
47%
2.7 SSW
29.83
58°F
0
1%
11 PM
79°F
80°F
47%
1.3 SSW
29.83
57°F
0
1%
Thu, Oct 8th 2026
Clear conditions expected later. Temps range from 75° to 78°. Calm winds, shifting from W to SW at 0.6 mph, with humidity ranging 46% to 48%, and an avg barometric pressure of 29.81 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
12 AM
78°F
79°F
47%
1.1 W
29.83
56°F
0
1%
1 AM
77°F
79°F
48%
0.7 W
29.82
56°F
0
1%
2 AM
76°F
78°F
48%
0.4 NW
29.81
55°F
0
1%
3 AM
76°F
77°F
47%
0.2 NW
29.8
54°F
0
1%
4 AM
75°F
76°F
46%
0.7 SW
29.8
54°F
0
1%
This hour by hour weather report is relevant for ZIP codes from 92831 through 92838, accurately covering all areas within Fullerton, CA.
Currently
|
79°F |
29.83 inHg.
Barometer 39%
Humidity SE 3.6mph Wind |
| Clear | ||
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