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 Monday August 10 to 400 PM Tuesday August 11 IMPACTS...Ozone Action Day Alert is now in effect for the Front Range Urban Corridor. Ozone concentrations in the Unhealthy for Sensitive Groups category are possible both Monday and Tuesday during the afternoon and evenings, mainly in and near 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. Tuesday, August 11, 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.
Local weather forecast
Weather in Fort Lupton, CO
Updated 2026-08-11 10:00 local time · ZIP codes 80621

Now83°F
Sunny
High / Low101° / 64°
Rain chance36%
Wind4 mph
Weather alerts
1Active alerts
Hourly
Next hours
Now
83°0% rain
83°0% rain11 AM
99°0% rain
99°0% rain12 PM
101°0% rain
101°0% rain1 PM
98°1% rain
98°1% rain2 PM
99°5% rain
99°5% rain3 PM
92°8% rain
92°8% rain4 PM
95°8% rain
95°8% rain5 PM
94°3% rain
94°3% rain6 PM
93°3% rain
93°3% rain7 PM
87°36% rain
87°36% rain8 PM
78°9% rain
78°9% rain9 PM
80°0% rain
80°0% rainForecast
3-day weather forecast
Today2026-08-11

101° 64°Sunny
Rain 36%Gust 20 mph
Tomorrow2026-08-12

97° 66°Sunny
Rain 57%Gust 22 mph
Thursday2026-08-13

90° 61°Sunny
Rain 64%Gust 20 mph
Conditions
Weather details
Feels like79°F
Humidity30%
Pressure30.11 inHg
Visibility10 mi
Wind4 mph SW
Wind gusts4 mph
Precipitation0.00 in
UV index4
Daylight
Sunrise, sunset and moon
Sunrise06:07 AM
Sunset08:01 PM
Moonrise04:11 AM
Moon phaseNew Moon
Practical guide
Weather insights for today
Umbrella may help
There is a moderate rain chance, peaking near 36%.
Light layers should work
It feels like 79°F with winds near 4 mph.
Best window: 10 AM
83°F, 0% rain chance and 4 mph wind.
Allow a little extra driving time
Visibility is around 10 mi; gusts may reach 32 mph.
Run with a few weather adjustments
Current temperature is 83°F, wind 4 mph, rain chance up to 36%.
Moderate UV protection recommended
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Fort Lupton weather today
Sunny and 83°F in Fort Lupton, CO. Today's high is 101°F with a 36% rain chance. Winds are around 4 mph with gusts near 4 mph. Relative humidity is 30%, pressure is 30.11 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Fort Lupton
Sunrise is at 06:07 AM and sunset is at 08:01 PM. Tomorrow's forecast calls for Sunny with a high near 97°F and a low near 66°F. The maximum rain chance is 57%.
Nearby
Weather near Fort Lupton
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