Today’s Forecast:
☀
91°F
Current Temperature
Clear
⚠️
Heat Advisory
Heat Advisory issued July 25 at 12:59AM MDT until July 25 at 9:00PM MDT by NWS Denver CO (Expires: July 25, 2026 10:00 pm)
Show Alert Details & Instructions
Description:
* 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.
Instructions:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
⚠️
Heat Advisory
Heat Advisory issued July 25 at 12:59AM MDT until July 26 at 9:00PM MDT by NWS Denver CO (Expires: July 26, 2026 10:00 pm)
Show Alert Details & Instructions
Description:
* 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.
Instructions:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
⚠️
Air Quality Alert
Air Quality Alert issued July 24 at 4:10PM MDT by NWS Denver CO (Expires: July 25, 2026 5:00 pm)
Show Alert Details & Instructions
Description:
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.
Today:A chance of showers and thunderstorms after 3pm. Mostly sunny. High near 99, with temperatures falling to around 96 in the afternoon. South southeast wind 2 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 30%.
Tonight:A slight chance of showers and thunderstorms before 10pm. Partly cloudy. Low around 69, with temperatures rising to around 71 overnight. Southwest wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Sunday:A chance of showers and thunderstorms after 3pm. Mostly sunny. High near 100, with temperatures falling to around 97 in the afternoon. North northwest wind 3 to 8 mph. Chance of precipitation is 30%.
Today’s Report:
Not Recommended for biking. High near 97°F. Risk of rain later today (25%). Light wind (9 mph). Hot temperatures (high near 97°F). Slight chance of thunderstorms. Temperatures outside comfort limits (97°F).
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Temp: Unfavorable weather factor
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Rain: Marginal weather factor
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Wind: Favorable conditions
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Heat: Marginal weather factor
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Thunderstorm: Marginal weather factor
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Alert: Unfavorable weather factor
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Alert: Unfavorable weather factor
⚠️ Active weather alerts affect this activity!
Tomorrow's Outlook:
Not Recommended
5/100
Not Recommended for paddling. High near 97°F. Risk of rain later today (25%). Light wind (9 mph). Hot temperatures (high near 97°F). Slight chance of thunderstorms. Temperatures outside comfort limits (97°F).
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Temp: Unfavorable weather factor
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Rain: Marginal weather factor
-
Wind: Favorable conditions
-
Heat: Marginal weather factor
-
Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended
12/100
Not Recommended for outdoor events / activities. High near 97°F. Risk of rain later today (25%). Light wind (9 mph). Hot temperatures (high near 97°F). Slight chance of thunderstorms. Temperatures outside comfort limits (97°F).
-
Temp: Unfavorable weather factor
-
Rain: Marginal weather factor
-
Wind: Favorable conditions
-
Heat: Marginal weather factor
-
Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended
12/100
Not Recommended for fishing. High near 97°F. Low rain risk (25%). Light wind (9 mph). Hot temperatures (high near 97°F). Slight chance of thunderstorms. Temperatures outside comfort limits (97°F).
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Temp: Unfavorable weather factor
-
Rain: Favorable conditions
-
Wind: Favorable conditions
-
Heat: Marginal weather factor
-
Thunderstorm: Marginal weather factor
Tomorrow's Outlook:
Not Recommended
12/100
About Fort Collins
Fort Collins is a northern Front Range planning page for bike paths, Poudre River access, reservoir days, foothill parks, outdoor events, and Old Town-to-trail outings.
Make the Most of a Fort Collins Day
Use wind, heat, river conditions, and storm timing to decide between a paved ride, a foothill trail, a paddling window, or an event plan. Foothill weather can change quickly west of town.
Weather Tips for Fort Collins
- Plains wind, Poudre River flow, afternoon lightning, hail, smoke, and hot exposed paths can all affect Fort Collins outdoor plans.
- Check wind, waves, current, water temperature, and lightning risk before choosing open water, river, or shoreline plans.
- For biking, watch wind, heat, trail exposure, and whether recent rain has left dirt, clay, or rock surfaces slick.
- Have a shore-based backup ready when wind, waves, high flow, or storms make water plans less comfortable.
Nearby Towns and Areas
This page is meant to cover a roughly 25-mile outdoor-planning area around Fort Collins, including Fort Collins, Horsetooth Reservoir, Poudre River routes, Bellvue, and nearby foothill parks west of town. It can also be useful when planning outdoor time near:
- Horsetooth Reservoir
- Poudre River
- Lory State Park
- Bellvue
- Old Town Fort Collins
- Mason Trail
- Spring Canyon Park
- Laporte
Plan Around the Conditions
Use the forecast to choose the best version of Fort Collins rather than forcing one itinerary. Match elevation, heat, wind, storm timing, water conditions, trail surfaces, road conditions, fire restrictions, and seasonal closures to the activity that gives your group the most comfortable day.
7-Day Forecast for Fort Collins CO
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