Waterloo, IA

3 October 2026: October 2026 so far brought 2.91 in of precipitation in Waterloo, IA, the wettest 1 to 3 October on record, in 132 years since 1895; provisional.

Saturday 3 October 2026

Saturday 3 October 2026: a high of 72°F in Waterloo, IA, the warmest 3 October since 2025, tied 62nd warmest of 132 (with 2016, 1957, 1942 and 3 other years).
Saturday 3 October 2026: a low of 44°F in Waterloo, IA, the coldest 3 October night since 2024, tied 61st coldest of 132 (with 2007, 1985 and 1957).
No measurable precipitation in Waterloo, IA for 2 days to Saturday 3 October 2026.

The latest report and the forecast

ForecastForecast for Monday 5 October 2026: a high of 71°F in Waterloo, IA, which would be the warmest 5 October since 2025, tied 48th warmest of 132 (with 2013, 2008, 1983 and 3 other years) (National Weather Service forecast).
ForecastForecast for Monday 5 October 2026: a low of 42°F in Waterloo, IA, which would be the coldest 5 October night since 2020, tied 53rd coldest of 132 (with 2020, 2015, 2013 and 2 other years) (National Weather Service forecast).

Every year on this date

Every 3 October high in Waterloo, IA since 1895: 72°F in 2026; the highest is 95°F, in 1997.

Every 3 October low in Waterloo, IA since 1895: 44°F in 2026; the lowest is 26°F, in 1987.

Above the normal range
In it
Below it
Normal range
This year and the extreme

Every year as a table

Year	High, °F	Low, °F
2026	72	44
2025	91	59
2024	80	43
2023	89	63
2022	75	48
2021	79	56
2020	55	36
2019	59	45
2018	85	47
2017	78	58
2016	72	47
2015	62	36
2014	53	37
2013	80	61
2012	78	40
2011	77	37
2010	60	30
2009	52	42
2008	65	37
2007	75	44
2006	88	57
2005	89	70
2004	76	43
2003	68	43
2002	61	53
2001	68	50
2000	71	40
1999	43	33
1998	51	45
1997	95	63
1996	56	30
1995	69	40
1994	58	49
1993	76	45
1992	85	46
1991	57	39
1990	66	47
1989	53	30
1988	67	30
1987	61	26
1986	64	53
1985	67	44
1984	73	43
1983	75	54
1982	70	40
1981	52	30
1980	50	39
1979	66	43
1978	59	47
1977	61	32
1976	85	50
1975	75	42
1974	61	34
1973	76	52
1972	62	54
1971	64	45
1970	60	31
1969	81	49
1968	53	32
1967	80	53
1966	68	48
1965	58	36
1964	75	43
1963	74	39
1962	65	54
1961	70	42
1960	66	38
1959	60	42
1958	73	47
1957	72	44
1956	78	42
1955	78	57
1954	84	65
1953	88	64
1952	68	29
1951	79	56
1950	52	34
1949	75	56
1948	62	34
1947	80	60
1946	75	50
1945	65	35
1944	56	47
1943	68	36
1942	72	55
1941	65	54
1940	76	51
1939	79	52
1938	83	56
1937	74	58
1936	68	41
1935	55	35
1934	61	41
1933	77	42
1932	73	50
1931	81	57
1930	68	52
1929	69	41
1928	80	41
1927	58	42
1926	78	59
1925	67	56
1924	73	54
1923	73	40
1922	86	52
1921	59	35
1920	82	35
1919	83	63
1918	72	55
1917	55	50
1916	84	50
1915	77	49
1914	79	50
1913	82	41
1912	73	42
1911	78	52
1910	70	60
1909	78	52
1908	68	45
1907	71	60
1906	80	39
1905	83	53
1904	69	38
1903	82	57
1902	60	42
1901	58	38
1900	87	66
1899	67	43
1898	72	56
1897	91	49
1896	66	39
1895	72	38

The 20 warmest 3 October highs in Waterloo, IA since 1895.
Rank	Year	Value
1	1997	95°F
2	2025	91°F
2	1897	91°F
4	2023	89°F
4	2005	89°F
6	2006	88°F
6	1953	88°F
8	1900	87°F
9	1922	86°F
10	2018	85°F
10	1992	85°F
10	1976	85°F
13	1954	84°F
13	1916	84°F
15	1938	83°F
15	1919	83°F
15	1905	83°F
18	1920	82°F
18	1913	82°F
18	1903	82°F

The 20 coldest 3 October lows in Waterloo, IA since 1895.
Rank	Year	Value
1	1987	26°F
2	1952	29°F
3	2010	30°F
3	1996	30°F
3	1989	30°F
3	1988	30°F
3	1981	30°F
8	1970	31°F
9	1977	32°F
9	1968	32°F
11	1999	33°F
12	1974	34°F
12	1950	34°F
12	1948	34°F
15	1945	35°F
15	1935	35°F
15	1921	35°F
15	1920	35°F
19	2020	36°F
19	2015	36°F

The 20 wettest 3 October days in Waterloo, IA since 1895.
Rank	Year	Value
1	1925	0.90 in
2	1907	0.71 in
3	1990	0.59 in
3	1951	0.59 in
5	1983	0.52 in
6	1962	0.50 in
7	2013	0.48 in
8	1998	0.46 in
9	2000	0.45 in
9	1994	0.45 in
11	1986	0.38 in
12	1972	0.34 in
13	1932	0.30 in
13	1915	0.30 in
15	1991	0.26 in
16	1981	0.25 in
17	1950	0.24 in
18	2018	0.21 in
19	2002	0.20 in
19	1941	0.20 in

This month, season and year so far

October 2026 so far averaged 57.2°F in Waterloo, IA, the coldest 1 to 3 October since 2020, tied 63rd coldest of 131 (with 1941).
Fall 2026 so far averaged 66.1°F in Waterloo, IA, the warmest 1 September to 3 October since 2025, 19th warmest of 132.
Fall 2026 so far brought 10.97 in of precipitation in Waterloo, IA, the wettest 1 September to 3 October since 2018, 4th wettest of 132.
2026 so far averaged 54°F in Waterloo, IA, the warmest 1 January to 3 October since 2025, tied 11th warmest of 131 (with 2025, 1998 and 1939).
2026 so far brought 40.75 in of precipitation in Waterloo, IA, the wettest 1 January to 3 October since 2018, 5th wettest of 131.
The 30 days to Saturday 3 October 2026 brought 10.88 in of precipitation in Waterloo, IA, the driest 30 days to 3 October since 2025, 130th driest of 132.
The 60 days to Saturday 3 October 2026 brought 14.28 in of precipitation in Waterloo, IA, the driest 60 days to 3 October since 2025, 128th driest of 132.
The 90 days to Saturday 3 October 2026 brought 19.78 in of precipitation in Waterloo, IA, the driest 90 days to 3 October since 2025, 127th driest of 132.

Daily highs and lows in Waterloo, IA, 1 to 3 October 2026, with each date's record range and its 1991 to 2020 normal range.

High
Low
Normal range
Record range

Every day as a table

Day	High, °F	Low, °F	Record high	Record high year	Record low	Record low year	Normal high	Normal low
1 October 2026	69	48	93	2023	23	2003	71	46.5
2 October 2026	68	42	93	1953	19	2003	66.5	45
3 October 2026	72	44	95	1997	26	1987	68.5	43.5

Every year's 1 to 3 October in Waterloo, IA, ranked by its mean temperature: October 2026 so far is the tied 68th warmest of 131.

Above the normal range
Above the normal
Below the normal
Below the normal range
Normal range

Every year, ranked, as a table

Rank	Year	Mean, °F
1	2023	76.8
2	2025	72.7
2	1919	72.7
4	2005	72.2
5	1953	70.8
6	1897	70.5
7	1922	70
8	2021	69.3
9	2006	68.7
10	1997	68.5
11	1983	68.3
12	2017	68
13	1971	67.2
13	1900	67.2
15	1976	66.5
16	1992	66.3
17	1937	66
18	1898	65.8
19	2013	65.7
20	1931	65.5
21	1969	65
21	1914	65
23	1942	64.8
24	1967	64.7
25	1903	64.3
26	1938	63.8
27	1932	63.7
27	1910	63.7
29	2002	63
29	1963	63
29	1926	63
32	2001	62.8
32	1905	62.8
34	1909	62.5
35	1973	62
35	1954	62
37	1956	61.8
37	1924	61.8
39	1949	61.5
40	1982	61.3
41	2016	61.2
41	2007	61.2
41	1913	61.2
44	1907	61
45	2022	60.8
46	2000	60.5
46	1915	60.5
48	2019	60.3
49	2012	59.8
49	1964	59.8
49	1916	59.8
52	1925	59.7
53	2024	59.2
53	1940	59.2
55	1972	58.8
56	1955	58.7
57	1947	58.5
57	1899	58.5
59	1962	58.3
59	1950	58.3
61	1939	58.2
61	1930	58.2
63	1995	57.7
63	1957	57.7
63	1923	57.7
66	1986	57.3
66	1904	57.3
68	2026	57.2
68	1941	57.2
70	1943	57
70	1928	57
72	1911	56.8
72	1906	56.8
74	1994	56.7
74	1946	56.7
76	2018	56.5
77	1990	56.3
77	1952	56.3
79	1968	55.8
80	1979	55.7
80	1933	55.7
80	1912	55.7
83	2014	55.3
84	1978	55.2
84	1927	55.2
86	1970	55
87	1896	54.8
88	1984	54.7
88	1929	54.7
90	1921	54.5
91	1901	54.3
92	1965	53.8
93	1991	53.7
94	1993	53.5
94	1918	53.5
94	1917	53.5
97	1966	53.3
97	1944	53.3
99	1960	53.2
99	1934	53.2
101	1988	53
101	1958	53
103	1948	52.8
104	1996	52.5
104	1959	52.5
106	1920	52.2
106	1902	52.2
106	1895	52.2
109	2011	51.5
109	2004	51.5
111	1989	50.7
112	2008	50.5
113	1908	50.3
114	2015	50
115	2010	49.8
115	2009	49.8
115	1945	49.8
118	1936	49.7
119	1980	49.5
119	1961	49.5
121	1985	49.3
122	1987	48.3
123	1977	48.2
124	1975	47.5
125	1935	47
126	1998	46.8
127	2020	46.5
128	2003	43.7
129	1999	42.2
130	1981	41.7
131	1974	41.5

This year so far

Waterloo, IA has had 12 days at 90°F or above in 2026 through 3 October, the most by that date since 2025, tied 98th most of 131 (with 1990 and 1944).
Waterloo, IA has had 84 freezing nights (a low of 32°F or below) in 2026 through 3 October, the most by that date since 2025, 118th most of 131.
The last freeze of spring 2026 in Waterloo, IA came on Monday 11 May 2026, the latest since 2020, tied 31st latest of 130 (with 1990 and 1946).

Records of the coming dates

Waterloo, IA on 5 October: record high 93°F (1963), record low 24°F (1988).
Waterloo, IA on 6 October: record high 95°F (1963), record low 18°F (1935).

The station

Daily records for Waterloo, IA run from 1895 to 3 October 2026, with 57 days missing; current station WATERLOO MUNICIPAL AP.

Our calculation from NOAA records for Waterloo, IA, 1895 to 2026. Preliminary until NOAA's final data.

All-time records

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