Weather in Thornton, Colorado
Sunday 22 November 2026
4°
Broken clouds
Feels like 0°
- High
- 6°
- Low
- 2°
- Humidity
- 62%
- Wind
- 15 km/h
Temperature and rain / Thornton
The coming days
High
19°
Low
-2°
Average high
11.5°
Average low
3.7°
Total rain
0.6 mm
Average rain
0.0 mm
Air quality - Thornton
Particles and ozone
Moderate
14.90 µg/m³
0-1212-3535-5555+
Acceptable; sensitive people should take care.
PM1016.80µg/m³
Ozone45µg/m³
Data updated hourly
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Frequently asked questions
Quick answers about the weather in Thornton
Tomorrow in Thornton, expect Clear sky ☀️, with:\n\n- High of 17°\n- Low of 3°
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Our data is updated regularly to give you the most reliable forecast.
Last updated: 2026-11-12