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Today Hourly 7 days 30 days October
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October 2025 Weather | Fullerton, California

Today 10/20
Sunny Weather
Day 84°
Night 55°
0
Tue 10/21
Cloudy Weather
Day 77°
Night 61°
0
Wed 10/22
Cloudy Weather
Day 73°
Night 57°
1
Thu 10/23
Sunny Weather
Day 79°
Night 54°
0
Fri 10/24
Cloudy Weather
Day 81°
Night 59°
0
Sat 10/25
Cloudy Weather
Day 75°
Night 61°
1
Sun 10/26
Cloudy Weather
Day 75°
Night 61°
1
Mon 10/27
Sunny Weather
Day 81°
Night 59°
0
Tue 10/28
Sunny Weather
Day 90°
Night 57°
0
Wed 10/29
Cloudy Weather
Day 91°
Night 59°
0
Thu 10/30
Sunny Weather
Day 90°
Night 57°
0
Fri 10/31
Cloudy Weather
Day 73°
Night 55°
0