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Today Hourly 7 days 30 days December
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December 2025 Weather | San Mateo, California

Today 12/4
Cloudy Weather
Day 61°
Night 43°
1
Fri 12/5
Cloudy Weather
Day 64°
Night 48°
0
Sat 12/6
Cloudy Weather
Day 64°
Night 46°
1
Sun 12/7
Cloudy Weather
Day 64°
Night 48°
3
Mon 12/8
Cloudy Weather
Day 63°
Night 48°
5
Tue 12/9
Cloudy Weather
Day 61°
Night 48°
3
Wed 12/10
Cloudy Weather
Day 63°
Night 50°
0
Thu 12/11
Cloudy Weather
Day 61°
Night 48°
0
Fri 12/12
Cloudy Weather
Day 63°
Night 48°
0
Sat 12/13
Cloudy Weather
Day 61°
Night 52°
0
Sun 12/14
Cloudy Weather
Day 63°
Night 52°
5
Mon 12/15
Cloudy Weather
Day 61°
Night 52°
0
Tue 12/16
Cloudy Weather
Day 63°
Night 54°
5
Wed 12/17
Cloudy Weather
Day 57°
Night 43°
25
Thu 12/18
Cloudy Weather
Day 54°
Night 39°
20
Fri 12/19
Cloudy Weather
Day 54°
Night 43°
20
Sat 12/20
Rainy Weather
Day 52°
Night 45°
59
Sun 12/21
Rainy Weather
Day 54°
Night 46°
59
Mon 12/22
Cloudy Weather
Day 54°
Night 45°
25
Tue 12/23
Cloudy Weather
Day 54°
Night 39°
25
Wed 12/24
Cloudy Weather
Day 54°
Night 43°
25
Thu 12/25
Cloudy Weather
Day 54°
Night 39°
30
Fri 12/26
Cloudy Weather
Day 52°
Night 39°
10
Sat 12/27
Cloudy Weather
Day 54°
Night 41°
20
Sun 12/28
Sunny Weather
Day 54°
Night 39°
5
Mon 12/29
Cloudy Weather
Day 54°
Night 39°
20
Tue 12/30
Cloudy Weather
Day 54°
Night 41°
25
Wed 12/31
Cloudy Weather
Day 54°
Night 43°
25