❮
Today Hourly 7 days 30 days May
❯

May 2026 Weather | Longmont, Colorado

Fri 5/1
Rainy Weather
Day 61°
Night 41°
65
Sat 5/2
Cloudy Weather
Day 61°
Night 39°
1
Sun 5/3
Cloudy Weather
Day 64°
Night 39°
1
Mon 5/4
Cloudy Weather
Day 72°
Night 41°
49
Tue 5/5
Cloudy Weather
Day 70°
Night 43°
47
Wed 5/6
Cloudy Weather
Day 72°
Night 43°
94
Thu 5/7
Cloudy Weather
Day 70°
Night 41°
55
Fri 5/8
Rainy Weather
Day 73°
Night 41°
25
Sat 5/9
Rainy Weather
Day 63°
Night 43°
5
Sun 5/10
Cloudy Weather
Day 64°
Night 43°
0
Mon 5/11
Cloudy Weather
Day 73°
Night 45°
49
Tue 5/12
Sunny Weather
Day 73°
Night 45°
0
Wed 5/13
Cloudy Weather
Day 75°
Night 45°
0
Thu 5/14
Cloudy Weather
Day 75°
Night 45°
40
Fri 5/15
Cloudy Weather
Day 75°
Night 46°
55
Sat 5/16
Partly Sunny with Showers
Day 75°
Night 46°
40
Sun 5/17
Cloudy Weather
Day 72°
Night 45°
40
Mon 5/18
Partly Sunny with Showers
Day 75°
Night 46°
40
Tue 5/19
Cloudy Weather
Day 79°
Night 46°
25
Wed 5/20
Partly Sunny with Showers
Day 77°
Night 48°
55
Thu 5/21
Partly Sunny with Showers
Day 79°
Night 39°
0
Fri 5/22
Rainy Weather
Day 77°
Night 41°
2
Sat 5/23
Cloudy Weather
Day 79°
Night 46°
10
Sun 5/24
Cloudy Weather
Day 81°
Night 45°
94
Mon 5/25
Cloudy Weather
Day 81°
Night 45°
89
Tue 5/26
Cloudy Weather
Day 81°
Night 46°
40
Wed 5/27
Cloudy Weather
Day 81°
Night 45°
55
Thu 5/28
Cloudy Weather
Day 82°
Night 41°
44
Fri 5/29
Cloudy Weather
Day 79°
Night 37°
25
Sat 5/30
Sunny Weather
Day 81°
Night 45°
55
Sun 5/31
Cloudy Weather
Day 81°
Night 46°
49

Explore U.S. Weather Trends

❄️ Coldest Cities in the U.S. – Live Temperature Rankings 🔥 Hottest Cities Today – Real-Time Heat Observations ⚠️ Active Weather Alerts – Warnings, Watches & Advisories 🌪️ Windiest Cities – Highest Sustained Wind Speeds 🌫️ Worst Air Quality – Cities with the Highest AQI 🍃 Best Air Quality – Cities with the Lowest AQI