As of 01:16 MDT

Boise, ID weather in January

72°

Boise, Sunday, 9 August, 01:16

Clear. Feels like 70°. High 96°, low 58°.

Pressure29.88 inHg

Wind2.5 mph W

Humidity42%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

In January, Boise, ID averages a high of 37.9° and a low of 23.2°. About 1.8 inches of precipitation fall over the month (10 wet days). The record high is 59.5° (2024) and the record low -20.7° (1962). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	33.3°	19°	28%	52.9° (1997)	-10.8° (1979)
2	34°	18.1°	23%	51.4° (2012)	-6° (2016)
3	35.1°	19.6°	25%	51.8° (2025)	-2° (1988)
4	35.2°	21.2°	35%	53.6° (2012)	-4.4° (1972)
5	36.1°	21.7°	37%	50.4° (2012)	-7.6° (1971)
6	35.2°	20.8°	35%	48.9° (1969)	-9.4° (2017)
7	36.3°	20.8°	28%	52.2° (1966)	-8.1° (2017)
8	37°	23°	42%	50.4° (2018)	-9.4° (1974)
9	37.6°	23.5°	35%	56.3° (1990)	-7.6° (1977)
10	37.8°	24.1°	38%	50.7° (1995)	-3.1° (1974)
11	38.1°	24.6°	38%	50.4° (2014)	-8.5° (1974)
12	38.1°	23.7°	43%	51.6° (2023)	-4.7° (2013)
13	38.3°	24.4°	38%	51.8° (2023)	-5.1° (2013)
14	39.4°	24.6°	28%	52.9° (1980)	-9.8° (2013)
15	38.7°	25°	37%	52.5° (1974)	0.5° (2013)
16	37.8°	23.7°	32%	53.6° (1974)	-4.9° (2024)
17	38.7°	23.7°	28%	51.8° (2019)	-1.5° (2017)
18	39.6°	24.3°	33%	58.6° (2018)	-6.2° (1984)
19	39.4°	25°	37%	52.2° (2005)	-5.1° (1960)
20	39.2°	23.9°	35%	52.2° (1981)	-5.8° (1984)
21	39°	24.4°	28%	55.6° (1981)	-7.2° (1962)
22	38.5°	23.4°	30%	54° (1981)	-20.7° (1962)
23	39°	23.9°	33%	53.1° (1970)	-11.9° (1962)
24	39.2°	24.8°	30%	52° (1992)	-3.6° (1962)
25	39.4°	24.8°	32%	51.6° (1992)	3° (1962)
26	39.6°	24.6°	32%	54.7° (1987)	3° (1979)
27	39°	23.7°	28%	55.6° (1987)	-0.8° (1979)
28	38.8°	23.9°	38%	52.3° (2005)	-4.9° (1979)
29	38.7°	23.7°	25%	52.5° (1992)	-0.2° (1979)
30	39°	23.2°	22%	57.4° (2024)	-10.7° (1979)
31	39.4°	23.7°	23%	59.5° (2024)	-13.7° (1979)