Boise, ID: Fall

10 October 2026: Fall 2026 so far averaged 66.1°F in Boise, ID, the warmest 1 September to 10 October since 2025, 13th warmest of 150.

Fall 2026 so far, to 10 October 2026

Mean temperature: 66.1°F; Warmest since 2025; 13th warmest of 150
Precipitation: 0.36 in; Driest since 2024; 47th driest of 149

A normal 1 September to 10 October in Boise, ID (1991 to 2020): a mean temperature of 63.4°F, between 61.8°F and 66.5°F in eight years of ten and 0.46 in of precipitation, between 0.07 in and 1.49 in in eight years of ten.

The mean temperature of every 1 September to 10 October in Boise, ID since 1877: 66.1°F in 2026; the highest is 69.8°F, in 1963.

Normal range, 61.8 to 66.5°F

Every year, ranked, as a table

Every 1 September to 10 October in Boise, ID from 1875 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	66.1	13	79.4	27	52.7	13	0.36	103	0
2025	68.2	4	80.9	13	55.5	2	1.80	19	0
2024	68.1	5	82.1	7	54.1	5	0.20	122	0
2023	66.5	9	78.9	33	54.1	5	1.13	45	0
2022	69.6	2	84.1	2	55.1	3	0.24	116	0
2021	65	24	79.4	27	50.6	23	0.92	53	0
2020	67.8	6	82.4	5	53.2	8	0.46	90	0
2019	60.7	91	72.9	113	48.5	51	0.87	60	0
2018	62.6	50	75.7	71	49.4	38	1.38	35	0
2017	62.2	62	74.5	95	50	31	0.60	75	0
2016	62.5	54	75	87	50.1	29	0.21	119	0
2015	66.4	12	79.7	25	53.2	8	0.56	82	0
2014	66	14	79	31	53.1	12	0.92	53	0
2013	62.6	50	74	104	51.1	21	1.77	21	0
2012	65.2	21	80	22	50.5	24	0.05	139	0
2011	68.3	3	81.9	8	54.7	4	1.47	30	0
2010	66.8	7	80.4	17	53.2	8	0.23	118	0
2009	64.3	29	77	52	51.6	16	0.65	72	0
2008	63.8	36	76.8	56	50.8	22	1.69	23	0
2007	62.1	64	75.3	79	48.9	44	1.06	47	0
2006	63.5	38	76.8	56	50.1	29	0.19	124	0
2005	60.6	93	74.1	103	47	81	0.59	77	0
2004	63.3	41	76.3	63	50.4	27	0.25	113	0
2003	66.5	9	79.8	23	53.2	8	0.04	142	0
2002	62.5	54	76.2	64	48.9	44	0.39	97	0
2001	65.7	19	80.1	18	51.3	19	0.45	92	0
2000	61.1	80	74.5	95	47.8	67	0.76	64	0
1999	62.5	54	77.3	50	47.8	67	trace	148	0
1998	66	14	78	42	53.9	7	1.99	13	0
1997	64.9	26	77.8	46	52	15	0.84	61	0
1996	63	44	76.8	56	49.2	41	0.46	90	0
1995	62.3	60	77.1	51	47.4	73	0.37	101	0
1994	63.6	37	79.1	30	48	64	0.42	96	0
1993	62.1	64	77.9	44	46.3	93	0.07	137	0
1992	61.9	68	76.8	56	47.1	79	0.44	93	0
1991	64.3	29	80.1	18	48.5	51	0.21	119	0
1990	65.6	20	81.3	11	49.8	33	0.55	83	0
1989	61.1	80	75.7	71	46.5	89	1.44	32	0
1988	62.9	45	78.8	35	47	81	0.24	116	0
1987	64.4	28	81.4	10	47.4	73	0.00	149	0
1986	56.4	143	68.8	146	44.1	133	2.93	5	0
1985	54.1	150	67	151	41.1	149	2.01	12	0
1984	60.2	102	74.8	91	45.5	109	0.69	70	0
1983	59.9	108	74.4	98	45.3	114	0.84	61	0
1982	57.8	131	70.7	136	44.9	123	1.80	19	0
1981	60.4	96	75.1	85	45.8	102	0.95	51	0
1980	62.4	58	76.9	53	47.9	65	1.59	27	0
1979	65.9	16	82.4	5	49.5	36	0.04	142	0
1978	60.6	93	74.8	91	46.3	93	0.89	57	0
1977	59.2	110	72.7	114	45.7	107	1.20	42	0
1976	62.1	64	75.7	71	48.6	49	2.28	9	0
1975	64.2	32	80.1	18	48.4	54	0.52	86	0
1974	62.2	62	78	42	46.3	93	0.17	127	0
1973	59.6	109	73	112	46.2	96	1.31	37	0
1972	58.4	121	71	135	45.8	102	1.39	33	0
1971	59	113	72.6	116	45.5	109	0.64	73	0
1970	56.8	139	70.4	139	43.3	140	1.13	45	0
1969	60.2	102	73.8	107	46.7	88	0.91	55	0
1968	60.9	84	74.7	93	47.1	79	0.10	132	0
1967	65.1	22	78.8	35	51.5	18	0.71	66	0
1966	63.3	41	78.2	40	48.4	54	0.34	105	0
1965	58.8	117	72.6	116	45	119	0.55	83	0
1964	59	113	73.6	108	44.5	129	0.78	63	0
1963	69.8	1	83.1	4	56.5	1	1.28	40	0
1962	62.8	48	77.5	47	48.2	58	0.91	55	0
1961	55.7	146	69.7	143	41.8	147	0.99	48	0
1960	64.1	33	79.8	23	48.5	51	0.39	97	0
1959	57.3	136	68.9	145	45.6	108	3.18	2	0
1958	60.9	84	75.3	79	46.5	89	0.19	124	0
1957	61.6	73	75.6	76	47.5	71	0.21	119	0
1956	63.3	41	78.5	38	48.1	62	0.34	105	0
1955	61.1	80	75.7	71	46.4	91	0.48	88	0
1954	60.2	102	75.3	79	45	119	0.08	135	0
1953	64.1	33	79.6	26	48.7	48	0.08	135	0
1952	64.5	27	80.1	18	48.9	44	0.05	139	0
1951	61.7	70	75.5	78	47.9	65	0.68	71	0
1950	61.1	80	74.4	98	47.7	70	1.17	44	0
1949	61.3	75	75.2	83	47.4	73	1.28	40	0
1948	60.6	93	75	87	46.2	96	0.70	67	0
1947	62.5	54	76	65	49	42	1.84	17	0
1946	57.5	134	71.4	130	43.6	138	0.75	65	0
1945	60.4	96	75.6	76	45.2	116	0.44	93	0
1944	62.3	60	76.5	60	48.2	58	0.19	124	0
1943	66.6	8	81.9	8	51.3	19	0.13	129	0
1942	62.9	45	78.3	39	47.4	73	0.01	146	0
1941	55.6	147	68.7	148	42.6	142	0.33	107	0
1940	60.8	90	72.2	120	49.4	38	1.99	13	0
1939	61.2	77	74.2	101	48.3	56	1.97	15	0
1938	65.8	17	78.9	33	52.6	14	0.97	50	0
1937	62.6	50	76.9	53	48.3	56	0.39	97	0
1936	61.5	74	76	65	47	81	0.07	137	0
1935	65.8	17	81.2	12	50.4	27	0.10	132	0
1934	60.9	84	75.1	85	46.8	85	0.49	87	0
1933	61.2	77	76.4	62	46.1	99	0.12	130	0
1932	62.4	58	77.5	47	47.3	77	0.20	122	0
1931	60.7	91	74.2	101	47.3	77	0.70	67	0
1930	60.9	84	73.3	111	48.6	49	1.72	22	0
1929	58.8	117	72.2	120	45.4	112	0.37	101	0
1928	62.6	50	76.9	53	48.2	58	0.58	79	0
1927	56.8	139	68.8	146	44.8	124	1.69	23	0
1926	56.8	139	69.9	141	43.7	135	0.11	131	0
1925	58.9	115	71.1	133	46.8	85	2.50	7	0
1924	60.3	99	73.6	108	47	81	0.59	77	0
1923	62.8	48	75.2	83	50.5	24	3.03	4	0
1922	65.1	22	80.8	14	49.3	40	0.02	145	0
1921	58.1	126	72.5	119	43.7	135	0.61	74	0
1920	62.1	64	74.7	93	49.5	36	1.89	16	0
1919	58.4	121	71.8	126	45.1	118	1.18	43	0
1918	63.4	40	75.3	79	51.6	16	3.17	3	0
1917	65	24	79.4	27	50.5	24	1.39	33	0
1916	58.6	119	71.5	128	45.8	102	0.89	57	0
1915	59.2	110	72.1	125	46.4	91	0.30	109	0
1914	59.1	112	71.5	128	46.8	85	1.30	38	0
1913	58.3	124	71.1	133	45.5	109	2.27	10	0
1912	55.4	148	67.3	150	43.4	139	1.54	29	0
1911	58.5	120	71.3	132	45.8	102	2.23	11	0
1910	61.3	75	74.5	95	48.1	62	0.98	49	0
1909	60.4	96	72.7	114	48.2	58	0.70	67	0
1908	60.9	84	74	104	47.8	67	1.30	38	0
1907	60.2	102	74.3	100	46.1	99	0.35	104	0
1906	63.5	38	77.9	44	49	42	0.38	100	0
1905	61.7	70	75.9	68	47.5	71	0.60	75	0
1904	64.3	29	79	31	49.6	34	1.32	36	0
1903	58.1	126	70.7	136	45.4	112	1.58	28	0
1902	60.9	84	76.5	60	45.3	114	0.03	144	0
1901	58.2	125	71.4	130	45	119	1.46	31	0
1900	57.1	138	69.9	141	44.3	131	1.61	26	0
1899	61.7	70	77.5	47	45.8	102	0.28	111	0
1898	58	129	72.2	120	43.8	134	0.01	146	0
1897	60	107	75	87	45	119	1.62	25	0
1896	58.1	126	73.5	110	42.7	141	0.28	111	0
1895	56.7	142	72.2	120	41.2	148	0.32	108	0
1894	57.2	137	72.2	120	42.2	144	0.58	79	0
1893	56.4	143	68.2	149	44.7	126	2.66	6	0
1892	62.9	45	80.7	16	45.2	116	0.89	57	0
1891	60.3	99	75.8	69	44.8	124	0.05	139	0
1890	57.5	134	72.6	116	42.4	143	0.93	52	0
1889	58.4	121	75.7	71	41.1	149	0.55	83	0
1888	66.5	9	83.4	3	49.6	34	0.10	132	0
1887	61.2	77	78.8	35	43.7	135	0.17	127	0
1886	58	129	73.9	106	42.1	145	0.44	93	0
1885	61.9	68	75	87	48.8	47	0.57	81	0
1884	54.2	149	64	152	44.3	131	2.39	8	0
1883	60.1	106	75.8	69	44.4	130	1.83	18	0
1882	57.7	132	69.5	144	45.9	101	3.52	1	0
1881	56.1	145	70.2	140	42	146	0.25	113	0
1880	60.3	99	76	65	44.6	127	0.25	113	0
1879	64	35	78.2	40	49.9	32	0.47	89	0
1878	57.6	133	70.6	138	44.6	127	0.30	109	0
1877	58.9	115	71.6	127	46.2	96			0
1876			80.8	14					40
1875			85.1	1					40

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1963	69.8
2022	69.6
2011	68.3
2025	68.2
2024	68.1
2020	67.8
2010	66.8
1943	66.6
2023	66.5
2003	66.5
More years share the last value

Coldest
Year	Mean, °F
1985	54.1
1884	54.2
1912	55.4
1941	55.6
1961	55.7
1881	56.1
1986	56.4
1893	56.4
1895	56.7
1970	56.8
More years share the last value

Wettest
Year	Precipitation, in
1882	3.52
1959	3.18
1918	3.17
1923	3.03
1986	2.93
1893	2.66
1925	2.50
1884	2.39
1976	2.28
1913	2.27

Driest
Year	Precipitation, in
1987	0.00
1999	trace
1942	0.01
1898	0.01
1922	0.02
1902	0.03
2003	0.04
1979	0.04
2012	0.05
1952	0.05
More years share the last value

The hottest, coldest and wettest days

Hottest day: 94°F; 24 September 2026
Coldest night: 43°F; 26 September 2026
Wettest day: 0.17 in; 4 September 2026

Every month, season and year

Months

Seasons

Years

Boise, ID the day's answers

All-time records

Every answer in words

Fall 2026 so far brought 0.36 in of precipitation in Boise, ID, the driest 1 September to 10 October since 2024, 47th driest of 149.
The hottest day of fall 2026 so far in Boise, ID: 94°F on Thursday 24 September 2026.
The coldest night of fall 2026 so far in Boise, ID: a low of 43°F on Saturday 26 September 2026.
The wettest day of fall 2026 so far in Boise, ID: 0.17 in on Friday 4 September 2026.