Hourly Weather | Tomorrow Wednesday, July 1, 2026
Active Weather Warnings
Longmont, Colorado
12 AM
Cloudy Night
64°
Feels Like 63°
33
Humidity: 61%
UV Index: 0
Wind: 7 mph
1 AM
Cloudy Night
63°
Feels Like 61°
39
Humidity: 57%
UV Index: 0
Wind: 7 mph
2 AM
Stormy Weather
61°
Feels Like 55°
51
Humidity: 61%
UV Index: 0
Wind: 7 mph
3 AM
Night
57°
Feels Like 55°
47
Humidity: 64%
UV Index: 0
Wind: 7 mph
4 AM
Night
57°
Feels Like 54°
40
Humidity: 62%
UV Index: 0
Wind: 7 mph
5 AM
Night
55°
Feels Like 52°
34
Humidity: 61%
UV Index: 0
Wind: 7 mph
6 AM
Sunny Weather
52°
Feels Like 52°
34
Humidity: 62%
UV Index: 0
Wind: 7 mph
7 AM
Sunny Weather
57°
Feels Like 57°
22
Humidity: 51%
UV Index: 1
Wind: 6 mph
8 AM
Sunny Weather
63°
Feels Like 66°
0
Humidity: 40%
UV Index: 2
Wind: 6 mph
9 AM
Sunny Weather
70°
Feels Like 73°
0
Humidity: 32%
UV Index: 4
Wind: 6 mph
10 AM
Cloudy Weather
75°
Feels Like 79°
0
Humidity: 25%
UV Index: 5
Wind: 7 mph
11 AM
Cloudy Weather
81°
Feels Like 88°
0
Humidity: 19%
UV Index: 8
Wind: 8 mph
12 PM
Cloudy Weather
84°
Feels Like 90°
0
Humidity: 16%
UV Index: 11
Wind: 9 mph
1 PM
Cloudy Weather
88°
Feels Like 93°
1
Humidity: 14%
UV Index: 11
Wind: 9 mph
2 PM
Cloudy Weather
90°
Feels Like 97°
7
Humidity: 12%
UV Index: 11
Wind: 8 mph
3 PM
Cloudy Weather
90°
Feels Like 93°
7
Humidity: 12%
UV Index: 7
Wind: 8 mph
4 PM
Cloudy Weather
91°
Feels Like 93°
7
Humidity: 11%
UV Index: 5
Wind: 8 mph
5 PM
Cloudy Weather
90°
Feels Like 91°
7
Humidity: 13%
UV Index: 4
Wind: 8 mph
6 PM
Cloudy Weather
88°
Feels Like 88°
7
Humidity: 14%
UV Index: 2
Wind: 8 mph
7 PM
Cloudy Weather
84°
Feels Like 84°
7
Humidity: 17%
UV Index: 1
Wind: 8 mph
8 PM
Cloudy Weather
81°
Feels Like 79°
7
Humidity: 21%
UV Index: 0
Wind: 8 mph
9 PM
Cloudy Night
79°
Feels Like 75°
7
Humidity: 27%
UV Index: 0
Wind: 9 mph
10 PM
Cloudy Night
73°
Feels Like 72°
7
Humidity: 32%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
72°
Feels Like 68°
7
Humidity: 38%
UV Index: 0
Wind: 9 mph

Weather Alerts and Warnings for Longmont

Air Quality Alert

Air Quality Alert issued June 30 at 9:10AM MDT by NWS Denver CO
Jun 30, 9:10 AM Jul 1, 9:00 AM
The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Action Day Alert for Multiple Pollutants.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Monday June 29 to 400 PM Tuesday June 30

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Hot, sunny, and occasionally smoky weather
conditions will result in ozone concentrations occasionally
reaching the Unhealthy for Sensitive Groups category on Monday and
Tuesday. Particle pollution levels could also reach the Unhealthy
for Sensitive Groups category, or worse, due to the wildfire
smoke. For Colorado air quality conditions, forecasts, and
advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Tuesday, June 30, 2026. Colorado is also addressing ozone
pollution through state policies. For more information about
health impacts and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone- pollution-and-your-health

HEALTH INFORMATION...People with heart or lung disease, older
adults, and children should reduce prolonged or heavy exertion.
During periods of heavier wildfire smoke, everyone should reduce
prolonged or heavy exertion.
Updated: Jun 30, 4:43 PM Source: NWS Alert