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

Thu 1/1
Rainy Weather
Day 63°
Night 50°
94
Fri 1/2
Cloudy Weather
Day 63°
Night 50°
55
Sat 1/3
Rainy Weather
Day 63°
Night 50°
68
Sun 1/4
Rainy Weather
Day 64°
Night 48°
60
Mon 1/5
Cloudy Weather
Day 64°
Night 48°
25
Tue 1/6
Rainy Weather
Day 61°
Night 46°
60
Wed 1/7
Cloudy Weather
Day 61°
Night 45°
16
Thu 1/8
Rainy Weather
Day 63°
Night 52°
56
Fri 1/9
Rainy Weather
Day 64°
Night 50°
59
Sat 1/10
Cloudy Weather
Day 63°
Night 46°
0
Sun 1/11
Cloudy Weather
Day 66°
Night 48°
0
Mon 1/12
Cloudy Weather
Day 68°
Night 43°
25
Tue 1/13
Sunny Weather
Day 63°
Night 43°
5
Wed 1/14
Cloudy Weather
Day 64°
Night 45°
25
Thu 1/15
Cloudy Weather
Day 66°
Night 45°
25
Fri 1/16
Cloudy Weather
Day 64°
Night 43°
20
Sat 1/17
Cloudy Weather
Day 63°
Night 45°
25
Sun 1/18
Cloudy Weather
Day 63°
Night 46°
25
Mon 1/19
Rainy Weather
Day 64°
Night 46°
55
Tue 1/20
Partly Sunny with Showers
Day 64°
Night 46°
60
Wed 1/21
Rainy Weather
Day 63°
Night 46°
69
Thu 1/22
Cloudy Weather
Day 63°
Night 45°
25
Fri 1/23
Cloudy Weather
Day 64°
Night 46°
25
Sat 1/24
Cloudy Weather
Day 64°
Night 46°
25
Sun 1/25
Cloudy Weather
Day 66°
Night 46°
25
Mon 1/26
Cloudy Weather
Day 63°
Night 46°
25
Tue 1/27
Cloudy Weather
Day 63°
Night 46°
25
Wed 1/28
Cloudy Weather
Day 63°
Night 46°
25
Thu 1/29
Rainy Weather
Day 63°
Night 46°
62
Fri 1/30
Rainy Weather
Day 61°
Night 45°
60
Sat 1/31
Cloudy Weather
Day 61°
Night 45°
25