As of 02:10 CDT

St. Thomas, ND weather in September

59°

St. Thomas, Sunday, 9 August, 02:10

Partly cloudy. Feels like 58°. High 78°, low 56°.

Pressure29.91 inHg

Wind1.1 mph S

Humidity69%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

In September, St. Thomas, ND averages a high of 67.7° and a low of 50.4°. About 2.3 inches of precipitation fall over the month (8 wet days). The record high is 98.2° (1983) and the record low 21.9° (1965). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	74.1°	56.1°	33%	95.4° (1983)	39.4° (1974)
2	73.4°	56.3°	32%	98.2° (1983)	38.1° (1974)
3	74.3°	55.9°	25%	90.5° (1990)	41.7° (1974)
4	73°	55.9°	23%	90.7° (2023)	39.6° (1962)
5	72.9°	55.4°	28%	95.7° (1978)	39.6° (1965)
6	72.3°	54.1°	32%	92.1° (1976)	38.5° (1968)
7	71.1°	53.2°	23%	89.2° (2003)	37.2° (2025)
8	70.3°	53.1°	25%	92.5° (1978)	37.8° (2020)
9	70.2°	52°	25%	90° (1982)	36.1° (2020)
10	70.9°	53.6°	23%	92.1° (1998)	39.4° (1965)
11	69.6°	52°	27%	89.1° (1990)	34° (1964)
12	69.1°	51.8°	28%	91° (2017)	36.1° (2014)
13	67.1°	50.9°	28%	82.4° (2017)	30.9° (1970)
14	66.6°	49.3°	17%	83.5° (2025)	34.9° (1964)
15	67.6°	49.8°	30%	82.9° (2012)	33.8° (1993)
16	68°	51.3°	27%	87.1° (2018)	32.9° (1973)
17	67.3°	50.5°	20%	87.8° (1998)	35.1° (2020)
18	67.6°	50.4°	28%	84.9° (1989)	34.9° (1971)
19	66.7°	50.7°	25%	85.6° (2021)	32.2° (1991)
20	64.4°	49.5°	27%	83.1° (2019)	31.8° (1973)
21	62.8°	48°	38%	81.9° (2015)	34.2° (1995)
22	63°	46°	28%	82.9° (2020)	29.5° (1995)
23	63.3°	45.9°	23%	83.8° (2007)	30.6° (2012)
24	64.6°	47.3°	32%	80.4° (1990)	32.4° (1985)
25	64.4°	46.8°	15%	81.1° (2024)	28.4° (1965)
26	64.6°	46.8°	23%	85.1° (1963)	21.9° (1965)
27	62.2°	45.3°	23%	81.1° (1989)	30° (1984)
28	62.1°	44.4°	22%	88.7° (2021)	29.5° (1961)
29	63.1°	44.8°	13%	87.3° (2021)	29.8° (1993)
30	63.5°	45.9°	17%	88.7° (1989)	30.9° (1974)