| Heat Advisory |
| * WHAT...Temperatures of 99 to 103 on both today and Sunday.
* WHERE...Fort Collins, Boulder, Denver metro, and Greeley.
* WHEN...From 10 AM to 9 PM MDT both today and Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses. |
| Air Quality Alert |
| The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Ozone Action Day Alert.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Friday July 24 to 400 PM Saturday July 25
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Hot and sunny weather will allow ozone to
reach the Unhealthy for Sensitive Groups category on Friday and
Saturday. The highest concentrations are expected in the Denver
Metro Area. 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.
Saturday, July 25, 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...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion. |
| | 5a | 8a | 11a | 2p | 5p | 8p | |
|---|
| Fri |  | | | | | | |
| 101 / 34 |
| Confidence | | |  |  |  |  |
 | | | 41 | 44 | 42 | 37 |
| Wind Chill | | | 38 | 40 | 38 | 32 |
 | | | 5 | 7 | 7 | 6 |
 | | | 80% | 50% | 90% | 70% |
 | | | 0 | 0 | 0 | 0 |
| Limiting Weather | | | - | - | totalCloud | temperature & Wind Chill |
| Limiting Weather Possible | | | - | - | totalCloud=90 | temperature=37 & Wind Chill=32 |
|
| Sat |  | | | | | | |
| 48 / 28 |
| Confidence |  |  |  |  |  |  |
 | 28 | 30 | 44 | 48 | 44 | 35 |
| Wind Chill | 22 | 24 | 40 | 44 | 41 | 28 |
 | 5 | 6 | 7 | 8 | 6 | 8 |
 | 10% | 20% | 10% | 10% | 10% | 10% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | temperature & Wind Chill |
| Limiting Weather Possible | temperature=28 & Wind Chill=22 | temperature=30 & Wind Chill=24 | - | - | - | temperature=35 & Wind Chill=28 |
|
| Sun |  | | | | | | |
| 56 / 33 |
| Confidence |  |  |  |  |  |  |
 | 34 | 36 | 51 | 56 | 51 | 41 |
| Wind Chill | 27 | 30 | | | | 36 |
 | 8 | 8 | 7 | 7 | 7 | 8 |
 | 30% | 20% | 20% | 10% | 10% | 10% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | - |
| Limiting Weather Possible | temperature=34 & Wind Chill=27 | temperature=36 & Wind Chill=30 | - | - | - | - |
|
| Mon |  | | | | | | |
| 55 / 36 |
| Confidence |  |  |  |  |  |  |
 | 36 | 37 | 50 | 55 | 51 | 42 |
| Wind Chill | 30 | 31 | 47 | | | 37 |
 | 8 | 8 | 7 | 7 | 7 | 8 |
 | 20% | 40% | 20% | 10% | 10% | 10% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | - |
| Limiting Weather Possible | temperature=36 & Wind Chill=30 | temperature=37 & Wind Chill=31 | - | - | - | - |
|
| Tue |  | | | | | | |
| 57 / 35 |
| Confidence |  |  |  |  |  |  |
 | 35 | 37 | 52 | 57 | 53 | 43 |
| Wind Chill | 29 | 31 | | | | 39 |
 | 7 | 8 | 7 | 7 | 5 | 6 |
 | 10% | 10% | 10% | 10% | 10% | 10% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | - |
| Limiting Weather Possible | temperature=35 & Wind Chill=29 | temperature=37 & Wind Chill=31 | - | - | - | - |
|
| Wed |  | | | | | | |
| 58 / 36 |
| Confidence |  |  |  |  |  |  |
 | 36 | 38 | 53 | 58 | 53 | 43 |
| Wind Chill | 31 | 33 | | | | 39 |
 | 6 | 7 | 7 | 6 | 5 | 7 |
 | 10% | 20% | 10% | 10% | 20% | 20% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | - |
| Limiting Weather Possible | temperature=36 & Wind Chill=31 | temperature=38 & Wind Chill=33 | - | - | - | - |
|
| Thu |  | | | | | | |
| 58 / 36 |
| Confidence |  |  |  |  |  |  |
 | 36 | 39 | 53 | 58 | 53 | 44 |
| Wind Chill | 30 | 34 | | | | 41 |
 | 7 | 7 | 6 | 7 | 5 | 6 |
 | 20% | 30% | 20% | 30% | 40% | 50% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | - |
| Limiting Weather Possible | temperature=36 & Wind Chill=30 | temperature=39 & Wind Chill=34 | - | - | - | - |
|
| Fri |  | | | | | | |
| 51 / 37 |
| Confidence |  |  |  |  |  |  |
 | 37 | 38 | 48 | 51 | 47 | 42 |
| Wind Chill | 33 | 34 | 45 | | 43 | 38 |
 | 5 | 5 | 6 | 8 | 8 | 7 |
 | 60% | 60% | 50% | 60% | 70% | 80% |
 | 0 | 0 | 0 | 0 | 0 | 0 |
| Limiting Weather | temperature & Wind Chill | temperature & Wind Chill | - | - | - | - |
| Limiting Weather Possible | temperature=37 & Wind Chill=33 | temperature=38 & Wind Chill=34 | - | - | - | - |
|
| Sat |  | | S | S | S | S | S |
| 43 / 34 |
| Confidence |  |  |  |  |  |  |
 | 35 | 35 | 40 | 43 | 43 | 36 |
| Wind Chill | 30 | 30 | 36 | 38 | 39 | 33 |
 | 6 | 6 | 6 | 8 | 7 | 4 |
 | 80% | 80% | 100% | 100% | 100% | 90% |
 | 0 | 0.01 in rain | 0.02 in rain | 0.03 in rain | 0.04 in rain | 0.6 in snow |
| Limiting Weather | temperature & Wind Chill | temperature & precip & Wind Chill | temperature & totalCloud & precip | totalCloud & precip | totalCloud & precip | temperature & totalCloud & precip & weasd & Wind Chill |
| Limiting Weather Possible | temperature=35 & Wind Chill=30 | temperature=35 & precip=0.01 & Wind Chill=30 | temperature=40 & totalCloud=100 & precip=0.02 | totalCloud=100 & precip=0.03 | totalCloud=100 & precip=0.04 | temperature=36 & totalCloud=90 & precip=0.04 & weasd=0.6 & Wind Chill=33 |
|
| Sun |  | S | S | S | S | S | |
| 39 / 29 |
| Confidence |  |  |  |  |  |  |
 | 29 | 31 | 37 | 38 | 39 | 31 |
| Wind Chill | 54 | 55 | 32 | 32 | 34 | 30 |
 | 0 | 0 | 7 | 8 | 7 | 2 |
 | 100% | 100% | 100% | 100% | 100% | 90% |
 | 0.1 in snow | 0.1 in snow | 0.01 in rain | 0.02 in rain | 0.01 in rain | 0 |
| Limiting Weather | temperature & totalCloud & precip | temperature & totalCloud & precip | temperature & totalCloud & precip & Wind Chill | temperature & totalCloud & precip & Wind Chill | temperature & totalCloud & precip & Wind Chill | temperature & totalCloud & Wind Chill |
| Limiting Weather Possible | temperature=29 & totalCloud=100 & precip=0.01 | temperature=31 & totalCloud=100 & precip=0.01 | temperature=37 & totalCloud=100 & precip=0.01 & Wind Chill=32 | temperature=38 & totalCloud=100 & precip=0.02 & Wind Chill=32 | temperature=39 & totalCloud=100 & precip=0.01 & Wind Chill=34 | temperature=31 & totalCloud=90 & Wind Chill=30 |
|