As of 18:45 CDT

Sioux City, IA weather in October

86°

Sioux City, Sunday, 9 August, 18:45

Clear. Feels like 87°. High 87°, low 71°.

Pressure29.71 inHg

Wind6.6 mph NE

Humidity48%

Visibility6.2 mi

Dew point64°

See detailed hourly forecast

In October, Sioux City, IA averages a high of 62° and a low of 44.5°. About 2.5 inches of precipitation fall over the month (7 wet days). The record high is 89.4° (2023) and the record low 16° (2020). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	71.1°	52.5°	22%	89.4° (2023)	31.5° (1985)
2	69.6°	50.7°	22%	87.6° (2023)	31.3° (1999)
3	68.5°	50.7°	27%	88.7° (2025)	36.1° (1989)
4	67.3°	49.3°	27%	85.5° (2025)	34.9° (1968)
5	67.3°	50.4°	37%	86.7° (1990)	31.3° (1988)
6	65.1°	48.4°	23%	87.3° (1997)	31.3° (2000)
7	66.4°	46.8°	18%	84.9° (1980)	28.6° (2000)
8	66.4°	48.2°	25%	83.1° (2010)	24.1° (2000)
9	64.4°	47.5°	28%	87.4° (2020)	30.4° (1964)
10	64°	45.5°	18%	82.4° (2024)	29.8° (2009)
11	65.8°	47.3°	15%	84.9° (2015)	26.1° (2009)
12	63.5°	46.6°	23%	88.9° (1975)	29.8° (2006)
13	63°	45.9°	23%	88° (1975)	28.2° (1986)
14	62.8°	44.6°	18%	81.9° (1963)	27.7° (1969)
15	61°	44.1°	28%	81.9° (1968)	27.3° (2018)
16	60.8°	43.3°	20%	81° (1991)	30.9° (1976)
17	61.5°	43.2°	17%	81.1° (1961)	24.4° (1976)
18	59°	43.3°	22%	81.5° (2005)	21.4° (2022)
19	60.6°	42.1°	18%	83.1° (2003)	20.3° (1972)
20	61.7°	42.8°	13%	80.8° (2024)	24.6° (1960)
21	61.2°	43°	15%	79.9° (2024)	25.2° (1987)
22	60.3°	43°	33%	80.6° (1991)	24.8° (1976)
23	59°	42.3°	28%	86.2° (2022)	23.5° (1981)
24	58.1°	41.4°	22%	76.5° (1989)	20.8° (2020)
25	57.7°	40.8°	20%	77.9° (1989)	24.8° (2020)
26	57.9°	40.8°	13%	76.8° (1989)	18.5° (2020)
27	56.7°	40.5°	22%	79.9° (1999)	16° (2020)
28	55.8°	39.7°	17%	78.8° (2016)	21.7° (1967)
29	56.7°	39.4°	22%	80.2° (2024)	23.9° (1980)
30	55°	39.2°	28%	73.6° (2024)	19.2° (1991)
31	54.1°	37.4°	25%	75.4° (1990)	19.2° (1993)