Local weather forecast

Weather in Granby, CO

Updated 2026-08-11 11:00 local time · ZIP codes 80446

Sunny
Now67°F

Sunny

High / Low80° / 45°
Rain chance57%
Wind6 mph
Weather alerts

Active alerts

1
Air Quality Alert issued August 10 at 8:10PM MDT by NWS Denver CO

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.

Hourly

Next hours

NowSunny67°1% rain
12 PMPartly Cloudy78°2% rain
1 PMPartly Cloudy79°3% rain
2 PMPartly Cloudy80°3% rain
3 PMPatchy rain nearby79°8% rain
4 PMPatchy rain nearby79°8% rain
5 PMPatchy rain nearby79°7% rain
6 PMPartly Cloudy77°3% rain
7 PMPatchy rain nearby72°17% rain
8 PMPatchy light drizzle56°39% rain
9 PMPatchy rain nearby51°25% rain
10 PMPatchy rain nearby48°32% rain
Forecast

3-day weather forecast

Today2026-08-11
Sunny
80° 45°Sunny
Rain 57%Gust 8 mph
Tomorrow2026-08-12
Sunny
79° 44°Sunny
Rain 63%Gust 13 mph
Thursday2026-08-13
Patchy rain nearby
75° 43°Patchy rain nearby
Rain 76%Gust 6 mph
Conditions

Weather details

Feels like67°F
Humidity43%
Pressure30.39 inHg
Visibility10 mi
Wind6 mph W
Wind gusts7 mph
Precipitation0.00 in
UV index6
Daylight

Sunrise, sunset and moon

Sunrise06:11 AM
Sunset08:06 PM
Moonrise04:16 AM
Moon phaseNew Moon
Practical guide

Weather insights for today

Umbrella may help

There is a moderate rain chance, peaking near 39%.

Light layers should work

It feels like 67°F with winds near 6 mph.

Best window: 11 AM

67°F, 1% rain chance and 6 mph wind.

Allow a little extra driving time

Visibility is around 10 mi; gusts may reach 15 mph.

Run with a few weather adjustments

Current temperature is 67°F, wind 6 mph, rain chance up to 39%.

High UV protection needed

UV index is 6. Sunscreen, shade and protective clothing are recommended.

Granby weather today

Sunny and 67°F in Granby, CO. Today's high is 80°F with a 57% rain chance. Winds are around 6 mph with gusts near 7 mph. Relative humidity is 43%, pressure is 30.39 inHg, and visibility is about 10 miles.

Tonight and tomorrow in Granby

Sunrise is at 06:11 AM and sunset is at 08:06 PM. Tomorrow's forecast calls for Sunny with a high near 79°F and a low near 44°F. The maximum rain chance is 63%.

Nearby

Weather near Granby

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