As of 17:23 CDT

Mound City, SD weather in September

82°

Mound City, Sunday, 9 August, 17:23

Overcast. Feels like 82°. High 82°, low 59°.

Pressure29.83 inHg

Wind7.8 mph NE

Humidity42%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

In September, Mound City, SD averages a high of 72.5° and a low of 53.5°. About 1.8 inches of precipitation fall over the month (6 wet days). The record high is 99.7° (1976) and the record low 25.2° (1965). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	79.3°	59.9°	25%	96.6° (1983)	43.2° (1965)
2	78.8°	59.9°	25%	98.1° (1983)	44.1° (1974)
3	79.3°	59.4°	17%	97.3° (2015)	43.3° (1974)
4	79.3°	59.7°	17%	95.4° (2005)	42.4° (1962)
5	78.4°	59°	15%	98.4° (1978)	37.6° (1965)
6	78.1°	57.9°	15%	99.7° (1976)	43.2° (2025)
7	76.6°	56.7°	25%	97.3° (1980)	40.5° (1986)
8	75.7°	56.7°	13%	93° (1978)	39.9° (2020)
9	74.8°	55.9°	23%	91.9° (1961)	34.2° (2020)
10	76.3°	55.9°	15%	95.5° (1982)	39.2° (1965)
11	74.7°	55.8°	28%	94.5° (1990)	37.6° (1964)
12	73.6°	55°	20%	93° (1990)	36.1° (1989)
13	71.1°	53.6°	25%	88.2° (1969)	36.9° (1970)
14	70.3°	52.5°	27%	89.4° (2006)	35.6° (1970)
15	72°	53.8°	25%	88.3° (2012)	40.5° (1961)
16	71.8°	53.6°	18%	90.3° (1979)	39° (1965)
17	72°	53.1°	23%	94.5° (1989)	36.3° (1965)
18	71.4°	52.7°	27%	92.8° (2000)	37.6° (1991)
19	70.3°	52.9°	28%	93.4° (1972)	33.6° (1991)
20	68.9°	51.1°	28%	87.8° (1960)	37.2° (1965)
21	66.7°	49.8°	28%	89.8° (1984)	33.3° (1995)
22	67.3°	48.6°	20%	87.3° (2013)	31.6° (1995)
23	67.5°	48.4°	25%	89.8° (2007)	33.3° (1965)
24	68.9°	49.1°	18%	86.7° (1992)	32.9° (1985)
25	68.9°	49.5°	17%	86.2° (1974)	30.9° (1984)
26	70.2°	49.8°	8%	90.1° (1974)	25.2° (1965)
27	67.6°	48.6°	15%	90.5° (1983)	33.8° (1967)
28	67.8°	48.2°	17%	89.2° (2021)	30.9° (1984)
29	68°	49.1°	8%	91.2° (2024)	30.9° (1984)
30	69.4°	49.1°	13%	88° (1980)	31.5° (1974)