September weather in Glasgow, MT
The average temperature in Glasgow in September is 59.6°F (46.1°F–73.2°F). Average precipitation: inches.
September is a fall month in Glasgow, and is warmer than the annual average of 44.2°F. Daily temperatures swing about 27.1°F between overnight low and afternoon high. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
73.2°F
Avg Low
46.1°F
Precipitation
in
Daylight
12h 20m
September records in Glasgow
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (1940) | 32.0°F (1930) | 0.35 in (1918) |
| September 2 | 102.0°F (1945) | 32.0°F (1934) | 1.50 in (1898) |
| September 3 | 102.0°F (1940) | 28.9°F (1902) | 0.07 in (1929) |
| September 4 | 100.0°F (1922) | 28.9°F (1935) | 0.43 in (1901) |
| September 5 | 98.1°F (1931) | 30.9°F (1898) | 1.23 in (1938) |
| September 6 | 100.0°F (1931) | 28.0°F (1929) | 2.43 in (1911) |
| September 7 | 102.9°F (2022) | 26.1°F (1929) | 1.50 in (1911) |
| September 8 | 95.0°F (1942) | 27.0°F (1929) | 0.71 in (1946) |
| September 9 | 99.0°F (1998) | 28.0°F (1894) | 2.02 in (1938) |
| September 10 | 91.9°F (1939) | 23.0°F (1955) | 1.94 in (1916) |
| September 11 | 95.0°F (1919) | 27.0°F (1955) | 0.71 in (1926) |
| September 12 | 93.0°F (1894) | 28.0°F (1903) | 0.91 in (1950) |
| September 13 | 93.0°F (1913) | 21.0°F (1949) | 1.17 in (1906) |
| September 14 | 96.1°F (1955) | 27.0°F (1915) | 0.96 in (1927) |
| September 15 | 91.9°F (1998) | 25.0°F (1897) | 0.48 in (1954) |
| September 16 | 96.1°F (1998) | 19.0°F (1903) | 0.85 in (1950) |
| September 17 | 95.0°F (1943) | 21.9°F (1902) | 0.32 in (1947) |
| September 18 | 96.1°F (1928) | 26.1°F (1896) | 0.35 in (1946) |
| September 19 | 95.0°F (2009) | 24.1°F (1913) | 0.97 in (1925) |
| September 20 | 100.0°F (1922) | 21.0°F (1934) | 0.28 in (1955) |
| September 21 | 98.1°F (1922) | 15.1°F (1895) | 0.58 in (1914) |
| September 22 | 93.0°F (1917) | 26.1°F (1932) | 0.37 in (1920) |
| September 23 | 93.9°F (1917) | 19.0°F (1893) | 0.61 in (1901) |
| September 24 | 93.0°F (1917) | 19.9°F (1926) | 0.89 in (1931) |
| September 25 | 96.1°F (2024) | 14.0°F (1893) | 0.35 in (1951) |
| September 26 | 93.0°F (1952) | 19.0°F (1928) | 0.16 in (1932) |
| September 27 | 96.1°F (1922) | 15.1°F (1928) | 0.47 in (1937) |
| September 28 | 90.0°F (1897) | 19.9°F (1928) | 0.61 in (1905) |
| September 29 | 96.1°F (2024) | 19.9°F (1912) | 1.45 in (1925) |
| September 30 | 88.0°F (1897) | 15.1°F (1907) | 0.41 in (1944) |