As of 11:38 MDT

Harlowton, MT weather in September

78°

Harlowton, Sunday, 9 August, 11:38

Mostly clear. Feels like 77°. High 87°, low 56°.

Pressure29.83 inHg

Wind10.6 mph NW

Humidity18%

Visibility6.2 mi

Dew point31°

See detailed hourly forecast

In September, Harlowton, MT averages a high of 68.7° and a low of 44.3°. About 1.4 inches of precipitation fall over the month (6 wet days). The record high is 98.1° (2022) and the record low 8.6° (1984). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	75°	49.6°	10%	90.5° (2022)	38.1° (1965)
2	76.1°	49.8°	13%	90.9° (2024)	36.5° (2008)
3	75.9°	48.6°	8%	96.4° (2022)	34° (1974)
4	74.8°	49.1°	17%	91° (2022)	31.5° (1962)
5	74.7°	48.6°	17%	94.8° (2020)	33.6° (2008)
6	73.2°	48.7°	18%	88.9° (1988)	37.9° (1969)
7	72.9°	47.7°	23%	98.1° (2022)	34.2° (1992)
8	72°	47.3°	27%	88.9° (1979)	28.9° (2020)
9	72.1°	46.4°	17%	87.1° (2017)	26.8° (1962)
10	71.1°	46°	22%	86.4° (2021)	34.2° (1992)
11	69.3°	45.7°	23%	86.2° (2017)	23° (1989)
12	67.8°	45°	35%	88.7° (2017)	20.7° (2014)
13	66.7°	44.1°	18%	84.4° (2015)	26.4° (1970)
14	68.2°	42.8°	27%	88.5° (2020)	15.8° (1970)
15	68.9°	44.2°	13%	88° (2000)	13.1° (1970)
16	67.8°	44.1°	27%	85.1° (1979)	23° (1965)
17	66.9°	43.5°	23%	84.7° (2009)	15.1° (1965)
18	66.7°	43.2°	28%	85.8° (1981)	13.8° (1965)
19	64.9°	43.2°	25%	86.4° (2009)	23.7° (1965)
20	63.1°	41.5°	27%	80.1° (1966)	15.8° (1983)
21	63.3°	39.7°	27%	81.7° (1979)	18.3° (1983)
22	64.4°	39.7°	17%	81.9° (1987)	23.2° (1983)
23	65.8°	41°	22%	84.7° (1966)	22.1° (2000)
24	66°	41.4°	7%	83.5° (2011)	16.7° (2000)
25	67.6°	41°	15%	87.4° (2015)	8.6° (1984)
26	66°	43.2°	17%	85.5° (2015)	25.7° (1972)
27	64.9°	41.2°	23%	82.6° (1963)	26.6° (1984)
28	64.9°	40.3°	12%	85.1° (2022)	12.7° (1984)
29	65.5°	41.2°	13%	86° (2024)	10.8° (1984)
30	64°	41°	17%	84.7° (2011)	20.3° (1985)