Thornton, CO Weather Forecast
Adams County, Colorado
Live radar, warnings and storm tracking for Thornton, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Thornton
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Thornton, CO at a glance
Thornton is home to about 144,922 people in Adams County, across 37 square miles. It ranks 6th by population of 105 places in Colorado with a forecast here. The nearest neighbour with its own forecast is Northglenn, 2 miles away.
- County
- Adams County
- Population
- 144,922 2023 est.
- Land area
- 37 sq mi
- People per sq mi
- 3,970
- Forecast point
- 39.9204°N, 104.9414°W
How well can the network see Thornton?
The nearest Doppler radar is KFTG (Denver, CO), to the ESE. Its lowest scan passes about 1,300 ft above Thornton. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Thornton show up clearly. Thornton is closer to its radar than 81% of US cities.
The closest weather station is KEIK (Erie Muni). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Thornton
- Northglenn, CO2 mi
- Federal Heights, CO5 mi
- Broomfield, CO6 mi
- Westminster, CO7 mi
- Commerce City, CO8 mi
- Brighton, CO8 mi
- Erie, CO10 mi
- Lafayette, CO10 mi
Elsewhere in Colorado
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