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Boulder, CO
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May 2026 Weather |
Boulder, Colorado
Fri
5/1
Cloudy Weather
Day
48°
Night
34°
25
Sat
5/2
Cloudy Weather
Day
64°
Night
39°
16
Sun
5/3
Rainy Weather
Day
64°
Night
43°
65
Mon
5/4
Partly Sunny with Showers
Day
64°
Night
43°
60
Tue
5/5
Partly Sunny with Showers
Day
66°
Night
43°
61
Wed
5/6
Cloudy Weather
Day
61°
Night
43°
55
Thu
5/7
Cloudy Weather
Day
64°
Night
45°
55
Fri
5/8
Cloudy Weather
Day
66°
Night
45°
23
Sat
5/9
Rainy Weather
Day
66°
Night
46°
60
Sun
5/10
Cloudy Weather
Day
72°
Night
41°
25
Mon
5/11
Cloudy Weather
Day
72°
Night
41°
57
Tue
5/12
Rainy Weather
Day
63°
Night
37°
0
Wed
5/13
Cloudy Weather
Day
61°
Night
37°
0
Thu
5/14
Sunny Weather
Day
63°
Night
37°
41
Fri
5/15
Cloudy Weather
Day
70°
Night
39°
60
Sat
5/16
Cloudy Weather
Day
73°
Night
45°
49
Sun
5/17
Cloudy Weather
Day
75°
Night
46°
49
Mon
5/18
Cloudy Weather
Day
75°
Night
48°
60
Tue
5/19
Cloudy Weather
Day
75°
Night
48°
40
Wed
5/20
Cloudy Weather
Day
75°
Night
46°
49
Thu
5/21
Cloudy Weather
Day
75°
Night
46°
0
Fri
5/22
Cloudy Weather
Day
75°
Night
46°
1
Sat
5/23
Rainy Weather
Day
75°
Night
48°
80
Sun
5/24
Rainy Weather
Day
72°
Night
48°
97
Mon
5/25
Cloudy Weather
Day
72°
Night
48°
88
Tue
5/26
Sunny Weather
Day
77°
Night
50°
40
Wed
5/27
Cloudy Weather
Day
79°
Night
50°
49
Thu
5/28
Rainy Weather
Day
79°
Night
52°
88
Fri
5/29
Rainy Weather
Day
79°
Night
52°
25
Sat
5/30
Cloudy Weather
Day
73°
Night
52°
49
Sun
5/31
Cloudy Weather
Day
81°
Night
52°
25
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