Weather in Thornton, Colorado
Monday 9 November 2026
18°
Clear sky
Feels like 14°
- High
- 20°
- Low
- 3°
- Humidity
- 24%
- Wind
- 10 km/h
Temperature and rain / Thornton
The coming days
High
21°
Low
0°
Average high
16.4°
Average low
6.8°
Total rain
0.9 mm
Average rain
0.1 mm
Air quality - Thornton
Particles and ozone
Moderate
13.90 µg/m³
0-1212-3535-5555+
Acceptable; sensitive people should take care.
PM1014.50µg/m³
Ozone45µg/m³
Data updated hourly
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Frequently asked questions
Quick answers about the weather in Thornton
Tomorrow in Thornton, expect Few clouds 🌤️, with:\n\n- High of 20°\n- Low of 2°
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Our data is updated regularly to give you the most reliable forecast.
Last updated: 2026-11-09