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Today Hourly 7 days 30 days January
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January 2026 Weather | Fullerton, California

Today 1/13
Sunny Weather
Day 81°
Night 46°
0
Wed 1/14
Sunny Weather
Day 81°
Night 54°
0
Thu 1/15
Sunny Weather
Day 84°
Night 50°
1
Fri 1/16
Sunny Weather
Day 81°
Night 52°
1
Sat 1/17
Sunny Weather
Day 82°
Night 54°
2
Sun 1/18
Cloudy Weather
Day 81°
Night 50°
3
Mon 1/19
Sunny Weather
Day 81°
Night 48°
0
Tue 1/20
Cloudy Weather
Day 79°
Night 52°
0
Wed 1/21
Cloudy Weather
Day 72°
Night 54°
0
Thu 1/22
Sunny Weather
Day 66°
Night 52°
0
Fri 1/23
Partly Sunny with Showers
Day 70°
Night 48°
69
Sat 1/24
Rainy Weather
Day 70°
Night 52°
56
Sun 1/25
Rainy Weather
Day 70°
Night 50°
57
Mon 1/26
Cloudy Weather
Day 70°
Night 48°
10
Tue 1/27
Cloudy Weather
Day 70°
Night 46°
10
Wed 1/28
Cloudy Weather
Day 70°
Night 48°
25
Thu 1/29
Cloudy Weather
Day 70°
Night 50°
25
Fri 1/30
Cloudy Weather
Day 72°
Night 50°
25
Sat 1/31
Cloudy Weather
Day 64°
Night 48°
25