October weather in Ismay, MT
The average temperature in Ismay in October is 44.7°F (31.3°F–58.1°F). Average precipitation: 1.16 inches. Average snowfall is 2.0 inches.
October is a fall month in Ismay, and is warmer than the annual average of 44.2°F. Daily temperatures swing about 26.8°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 10h 38m. For travel, October is cool.
Avg High
58.1°F
Avg Low
31.3°F
Precipitation
1.16 in
Snow
2.0 in
October records in Ismay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 91.9°F (1946) | 16.0°F (1958) | 1.15 in (1971) |
| October 2 | 93.9°F (1953) | 19.9°F (2004) | 2.30 in (1971) |
| October 3 | 93.0°F (1922) | 18.0°F (1968) | 0.76 in (2006) |
| October 4 | 91.0°F (2011) | 18.0°F (1952) | 1.42 in (1940) |
| October 5 | 93.9°F (1963) | 10.9°F (1952) | 1.52 in (1998) |
| October 6 | 91.9°F (1975) | 5.0°F (1952) | 1.46 in (1994) |
| October 7 | 88.0°F (1975) | 10.9°F (1946) | 0.80 in (1977) |
| October 8 | 87.1°F (1943) | 14.0°F (1948) | 0.75 in (1997) |
| October 9 | 84.9°F (1942) | 12.0°F (1948) | 1.03 in (1982) |
| October 10 | 89.1°F (1942) | 14.0°F (1958) | 0.65 in (1923) |
| October 11 | 88.0°F (1953) | 10.0°F (1977) | 0.70 in (1928) |
| October 12 | 86.0°F (1934) | 12.9°F (1917) | 0.91 in (1924) |
| October 13 | 82.9°F (1958) | 16.0°F (2019) | 0.98 in (2021) |
| October 14 | 82.9°F (1964) | 15.1°F (1960) | 0.35 in (2013) |
| October 15 | 82.9°F (1945) | 10.0°F (1960) | 0.90 in (1980) |
| October 16 | 88.0°F (1991) | 3.9°F (1948) | 1.03 in (2025) |
| October 17 | 86.0°F (1927) | 12.9°F (1969) | 1.10 in (1971) |
| October 18 | 81.0°F (2003) | 9.0°F (1930) | 0.65 in (1994) |
| October 19 | 84.0°F (2003) | 0.0°F (1960) | 0.45 in (1995) |
| October 20 | 84.9°F (1958) | 7.0°F (1930) | 0.75 in (1996) |
| October 21 | 84.0°F (1992) | 14.0°F (1976) | 0.64 in (1928) |
| October 22 | 80.1°F (1915) | 14.0°F (1936) | 1.30 in (1953) |
| October 23 | 81.0°F (1915) | -2.0°F (2020) | 0.35 in (1991) |
| October 24 | 82.0°F (1927) | 3.0°F (1919) | 0.44 in (1942) |
| October 25 | 82.0°F (1948) | -4.0°F (1919) | 0.33 in (1946) |
| October 26 | 78.1°F (1922) | -8.0°F (1919) | 0.55 in (2023) |
| October 27 | 80.1°F (1983) | -2.9°F (2023) | 2.00 in (1982) |
| October 28 | 80.1°F (1990) | -5.1°F (1925) | 1.26 in (1912) |
| October 29 | 79.0°F (1968) | -16.1°F (1925) | 0.63 in (2003) |
| October 30 | 80.1°F (1950) | -15.0°F (1991) | 0.62 in (1922) |
| October 31 | 80.1°F (1990) | -9.0°F (2023) | 0.36 in (1943) |