Fullerton Weather Conditions
Current Temperature Level
26 °C
55 AQI
Air quality index is: Moderate
Last Updated: 2025-08-12 15:00 (Local Time)
MapFullerton
Fullerton Weather Parameters
15 km/h
5 m/s
226° SW
0 %
16 km
0 mm
1013 mb
UV Index6
Suggestions for
TodayFullerton12 Aug.
Umbrella• Optional
Clothing• Layering Must
Driving• Enjoy Driving
Sunscreen• ApplyTrending in United States
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Fullerton 10-Days Weather Forecast
Today
23°C
72 %Wednesday
23°C71 %Thursday
23°C71 %Friday
22°C69 %Saturday
22°C63 %Sunday
22°C65 %Monday
23°C61 %Tuesday
24°C56 %Wednesday
25°C55 %Thursday
25°C54 %Sunny
Clear Sky with temperature at 23 °C and humidity will be at 72% with 15.1 km/h winds.31°C / 19°C
Humi.72 %
Prec.0 mm
Sunrise
06:12 AM13hrs 29min
Sunset
07:41 PMTime
Condition
Temp
Humidity
UV
Wind Speed & Dir.
12 AM
Partly Cloudy
20 °C
82 %
0
6.1 kmph / S
Partly Cloudy 
Feels 19.8 °C
Cover 35 %
Visibility 10 km
1 AM
Partly Cloudy
20 °C
85 %
0
6.1 kmph / SSW
Partly Cloudy Feels 19.6 °C
Cover 43 %
Visibility 10 km
2 AM
Partly Cloudy
19 °C
83 %
0
7.2 kmph / S
Partly Cloudy Feels 19.4 °C
Cover 28 %
Visibility 10 km
3 AM
Partly Cloudy
19 °C
84 %
0
6.5 kmph / S
Partly Cloudy Feels 19.3 °C
Cover 28 %
Visibility 10 km
4 AM
Partly Cloudy
19 °C
84 %
0
6.1 kmph / S
Partly Cloudy Feels 19.3 °C
Cover 28 %
Visibility 10 km
5 AM
Partly Cloudy
19 °C
84 %
0
6.1 kmph / S
Partly Cloudy Feels 19.4 °C
Cover 30 %
Visibility 10 km
6 AM
Partly Cloudy
20 °C
85 %
0
6.1 kmph / S
Partly Cloudy Feels 19.5 °C
Cover 37 %
Visibility 10 km
7 AM
Partly Cloudy
20 °C
87 %
0.2
5 kmph / S
Partly Cloudy Feels 19.7 °C
Cover 48 %
Visibility 10 km
8 AM
Partly Cloudy
20 °C
85 %
0.9
5.4 kmph / SSW
Partly Cloudy Feels 20.3 °C
Cover 60 %
Visibility 10 km
9 AM
Partly Cloudy
21 °C
81 %
2.4
7.9 kmph / SSW
Partly Cloudy Feels 21.1 °C
Cover 60 %
Visibility 10 km
10 AM
Partly Cloudy
23 °C
76 %
4.6
10.1 kmph / SSW
Partly Cloudy Feels 24.1 °C
Cover 46 %
Visibility 10 km
11 AM
Sunny
26 °C
67 %
6.8
11.5 kmph / SSW
SunnyFeels 27.8 °C
Cover 12 %
Visibility 10 km
12 PM
Sunny
29 °C
57 %
8.6
12.2 kmph / SW
SunnyFeels 30.6 °C
Cover 6 %
Visibility 10 km
1 PM
Sunny
29 °C
51 %
9.2
13 kmph / SW
SunnyFeels 30.6 °C
Cover 6 %
Visibility 10 km
2 PM
Sunny
29 °C
48 %
8.3
14.4 kmph / SW
SunnyFeels 30.2 °C
Cover 6 %
Visibility 10 km
3 PM
Sunny
26 °C
56 %
6.4
15.1 kmph / SW
SunnyFeels 29.7 °C
Cover 0 %
Visibility 16 km
4 PM
Sunny
28 °C
51 %
4
15.1 kmph / SW
SunnyFeels 29 °C
Cover 6 %
Visibility 10 km
5 PM
Sunny
27 °C
54 %
1.9
14.8 kmph / SW
SunnyFeels 28.1 °C
Cover 6 %
Visibility 10 km
6 PM
Sunny
26 °C
58 %
0.7
13.7 kmph / SW
SunnyFeels 27.4 °C
Cover 6 %
Visibility 10 km
7 PM
Sunny
25 °C
64 %
0.1
11.9 kmph / SW
SunnyFeels 26.2 °C
Cover 6 %
Visibility 10 km
8 PM
Clear
23 °C
70 %
0
9.7 kmph / SSW
Clear Feels 25.4 °C
Cover 11 %
Visibility 10 km
9 PM
Clear
22 °C
74 %
0
8.6 kmph / SSW
Clear Feels 24.9 °C
Cover 15 %
Visibility 10 km
10 PM
Partly Cloudy
22 °C
78 %
0
9 kmph / SSW
Partly Cloudy Feels 21.6 °C
Cover 27 %
Visibility 10 km
11 PM
Partly Cloudy
21 °C
81 %
0
7.9 kmph / SSW
Partly Cloudy Feels 20.8 °C
Cover 33 %
Visibility 10 km
Today
23°C72 %Wednesday
23°C71 %Thursday
23°C71 %Friday
22°C69 %Saturday
22°C63 %Sunday
22°C65 %Monday
23°C61 %Tuesday
24°C56 %Wednesday
25°C55 %Thursday
25°C54 %Temp28 °C
ConditionSunny
Humidity51 %
Feels29 °C
Cover6 %
Visibility10 km
Wind Speed & Dir.15.1 kmph / SW
UV4
Fullerton 30-Days (August 2025) Weather Forecast
Sun.
Mon.
Tue.
Wed.
Thu.
Fri.
Sat.
1Fri.
29°18 °C
2Sat.
31°19 °C
3Sun.
31°18 °C
4Mon.
29°18 °C
5Tue.
33°19 °C
6Wed.
34°19 °C
7Thu.
37°21 °C
8Fri.
35°21 °C
9Sat.
31°20 °C
10Sun.
30°19 °C
11Mon.
28°19 °C
12Today
28°18 °C
13Wed.
28°18 °C
14Thu.
29°21 °C
15Fri.
27°19 °C
16Sat.
26°18 °C
17Sun.
28°18 °C
18Mon.
29°19 °C
19Tue.
30°21 °C
20Wed.
32°22 °C
21Thu.
32°22 °C
22Fri.
32°23 °C
23Sat.
32°22 °C
24Sun.
30°22 °C
25Mon.
30°20 °C
26Tue.
31°20 °C
27Wed.
31°20 °C
28Thu.
31°21 °C
29Fri.
32°21 °C
30Sat.
31°20 °C
31Sun.
30°20 °C
AugustWeather Overview
No. of days:
Sunny
24
Cloudy
4
Rainy
3
Snowy
0
The monthly weather averages in Fullerton consist of 24 sunny days, 4 cloudy days, 3 rainy days, and 0 snowy days.
Fullerton's Locations Weather Conditions
United States's Hottest Cities - August 2025
1.
Park Village, United States
Sunny
8%
8.8
5.8 kmph / SSE
2.
Yuma, United States
Sunny
22%
7.8
19.8 kmph / S
3.
Blythe, United States
Sunny
15%
7.6
19.1 kmph / SSW
4.
Westmorland, United States
Overcast
21%
7.7
6.8 kmph / S
5.
Calipatria, United States
Overcast
21%
5.6
5.8 kmph / SSW
6.
Palm Springs, United States
Sunny
14%
8.5
3.6 kmph / S
7.
Brawley, United States
Overcast
21%
5.5
7.9 kmph / S
8.
Calexico, United States
Overcast
21%
5.6
8.6 kmph / SSE
9.
El Centro, United States
Overcast
21%
7.6
8.3 kmph / SSE
10.
Henderson, United States
Sunny
7%
5.9
3.6 kmph / ESE
Last Updated: 12 Aug 2025, 10:30 PM
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