As of 18:18 MDT

Boulder, CO weather in April

91°

Boulder, Saturday, 8 August, 18:18

Overcast. Feels like 87°. High 96°, low 66°.

Pressure29.71 inHg

Wind2 mph SE

Humidity20%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

In April, Boulder, CO averages a high of 57.2° and a low of 30.9°. About 3.1 inches of precipitation fall over the month (11 wet days). The record high is 84.4° (2025) and the record low -2.4° (1975). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	53.1°	26.6°	40%	79.3° (2012)	7.3° (2016)
2	52.7°	26.8°	43%	75.6° (2011)	-2.4° (1975)
3	50.2°	27.1°	45%	70.9° (2021)	5.9° (1975)
4	52.9°	24.4°	28%	72.5° (2021)	6.1° (1999)
5	55.8°	26.8°	23%	73.8° (1991)	7.9° (1964)
6	56.3°	27.9°	23%	76.3° (1991)	0.3° (1983)
7	56.5°	29.1°	25%	75.9° (1978)	-1.8° (1983)
8	57.4°	29.7°	22%	71.1° (2025)	0.3° (1983)
9	57.6°	29.3°	32%	74.7° (1977)	9.3° (1973)
10	55.9°	29.5°	30%	74.5° (1977)	-1.7° (2013)
11	56.3°	30°	40%	81° (2025)	5.5° (2013)
12	56.5°	30.9°	33%	84.4° (2025)	4.8° (1997)
13	56.1°	29.7°	43%	79.3° (2006)	-1.3° (1997)
14	58.8°	28.8°	25%	77.2° (2006)	1.4° (2020)
15	58.1°	31.3°	37%	78.1° (2002)	5° (1983)
16	57.4°	31.5°	33%	75.2° (2006)	7° (1973)
17	59.2°	31.8°	28%	79.5° (2006)	0.7° (1999)
18	58.1°	31.5°	35%	74.3° (2001)	6.8° (2013)
19	56.1°	32.4°	43%	75.7° (2022)	11.7° (2013)
20	56.7°	31.8°	42%	75.6° (1962)	12.2° (2021)
21	58.1°	31.6°	33%	79.7° (1989)	8.8° (1966)
22	58.8°	33.1°	45%	79.2° (2022)	19.4° (1982)
23	59.7°	33.4°	37%	78.6° (2012)	13.6° (1968)
24	60.1°	33.6°	42%	82° (2012)	6.1° (2013)
25	59°	35.2°	43%	77° (1981)	10.8° (2013)
26	59.5°	34.2°	43%	77.9° (1981)	16.5° (1961)
27	59.2°	34.2°	38%	76.6° (2025)	11.7° (1995)
28	61.2°	35.1°	43%	75.2° (1992)	16.7° (1965)
29	60.1°	35.2°	48%	78.4° (2007)	24.6° (2005)
30	58.5°	36°	62%	81.3° (1992)	6.4° (1960)