As of 01:38 MDT

Thornton, CO weather in July

74°

Thornton, Sunday, 9 August, 01:38

Partly cloudy. Feels like 73°. High 95°, low 69°.

Pressure29.85 inHg

Wind3 mph S

Humidity29%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

In July, Thornton, CO averages a high of 85.7° and a low of 59.4°. About 1.7 inches of precipitation fall over the month (9 wet days). The record high is 101.3° (2025) and the record low 45.5° (1972). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	84.7°	57.6°	23%	96.8° (2012)	47.5° (1995)
2	85.6°	57.7°	20%	98.1° (1990)	49.3° (1995)
3	85.6°	57.9°	23%	94.8° (2018)	46.6° (1972)
4	84.9°	57.7°	25%	95.5° (1964)	48° (1972)
5	85.3°	58.1°	27%	95.4° (1989)	45.5° (1972)
6	86.5°	58.8°	28%	97.7° (1973)	50.4° (1995)
7	86°	59°	23%	97.3° (2020)	51.4° (1960)
8	85.1°	59.4°	37%	97.3° (2021)	50.7° (1994)
9	86.2°	59.2°	20%	101.3° (2025)	51.1° (2010)
10	87.1°	59.5°	30%	98.8° (2020)	51.6° (1982)
11	86.5°	59.5°	18%	96.1° (2013)	53.8° (1984)
12	86.2°	59.5°	28%	100.9° (2024)	50.2° (1987)
13	86.7°	59.2°	30%	98.8° (2024)	46° (1987)
14	86°	59.7°	25%	98.4° (2024)	49.5° (1987)
15	86°	59.7°	25%	96.6° (2025)	50.5° (1973)
16	86.9°	59.7°	28%	97.3° (2005)	52.5° (1973)
17	86.9°	60.4°	32%	97.2° (2023)	51.6° (1992)
18	87.1°	60.6°	22%	99° (2022)	50.4° (1992)
19	86.4°	61°	38%	96.6° (2019)	54° (1979)
20	84.9°	60.3°	35%	99.7° (2005)	51.6° (1988)
21	85.6°	59.9°	35%	98.4° (2005)	51.1° (1973)
22	85.6°	59.5°	32%	99° (2005)	48° (1961)
23	85.8°	60.3°	25%	97° (2022)	48.6° (1990)
24	85.1°	60.4°	40%	95.9° (2003)	52° (1973)
25	85.3°	60.3°	38%	97.9° (2024)	51.8° (1973)
26	84.4°	60.1°	42%	94.1° (1993)	49.6° (2004)
27	85.3°	59°	32%	98.2° (2025)	51.8° (1973)
28	84.6°	59.4°	30%	98.2° (2025)	53.4° (1990)
29	84.7°	59.7°	28%	96.8° (2024)	48.9° (1971)
30	84.4°	59.7°	30%	97° (2024)	49.3° (1971)
31	84.2°	59.2°	35%	95.9° (2002)	49.3° (1973)