October weather in Idaho Falls, ID
The average temperature in Idaho Falls in October is 47.1°F (34.8°F–59.4°F). Average precipitation: 1.23 inches.
October is a fall month in Idaho Falls, and is warmer than the annual average of 46.5°F. Daily temperatures swing about 24.6°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 10h 46m. For travel, October is cool.
Avg High
59.4°F
Avg Low
34.8°F
Precipitation
1.23 in
Daylight
10h 46m
October records in Idaho Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 87.1°F (1992) | 24.1°F (1985) | 0.70 in (1971) |
| October 2 | 87.1°F (2010) | 23.0°F (1954) | 0.47 in (1971) |
| October 3 | 84.9°F (2010) | 23.0°F (1953) | 0.69 in (2006) |
| October 4 | 82.9°F (2024) | 23.0°F (2012) | 0.43 in (2025) |
| October 5 | 81.0°F (1988) | 23.0°F (1969) | 0.48 in (1967) |
| October 6 | 79.0°F (1960) | 19.9°F (1955) | 1.36 in (2007) |
| October 7 | 82.0°F (1979) | 23.0°F (1955) | 0.56 in (2011) |
| October 8 | 80.1°F (1963) | 18.0°F (1985) | 0.78 in (1973) |
| October 9 | 82.9°F (1996) | 19.0°F (1990) | 0.62 in (1974) |
| October 10 | 82.9°F (1996) | 14.0°F (2019) | 0.59 in (1972) |
| October 11 | 80.1°F (1963) | 17.1°F (2019) | 0.60 in (1981) |
| October 12 | 79.0°F (2024) | 17.1°F (1986) | 0.66 in (2023) |
| October 13 | 80.1°F (1964) | 18.0°F (1969) | 0.93 in (2000) |
| October 14 | 75.9°F (1973) | 16.0°F (1966) | 0.62 in (1983) |
| October 15 | 78.1°F (1973) | 17.1°F (1969) | 0.50 in (1994) |
| October 16 | 77.0°F (2015) | 18.0°F (1966) | 0.19 in (2011) |
| October 17 | 77.0°F (2015) | 15.1°F (1996) | 0.39 in (2007) |
| October 18 | 80.1°F (2003) | 19.0°F (1964) | 0.57 in (1971) |
| October 19 | 75.0°F (1977) | 15.1°F (1976) | 0.32 in (2015) |
| October 20 | 79.0°F (2003) | 16.0°F (1982) | 0.56 in (2007) |
| October 21 | 81.0°F (2003) | 16.0°F (1996) | 0.97 in (1961) |
| October 22 | 82.0°F (2003) | 18.0°F (1958) | 0.44 in (2022) |
| October 23 | 71.1°F (1992) | 15.1°F (1995) | 0.45 in (2004) |
| October 24 | 75.0°F (1992) | 15.1°F (2020) | 0.45 in (1997) |
| October 25 | 75.0°F (2014) | 7.0°F (2020) | 0.51 in (2016) |
| October 26 | 73.0°F (1990) | 6.1°F (2020) | 0.58 in (2021) |
| October 27 | 72.0°F (1977) | 12.0°F (1970) | 0.77 in (1956) |
| October 28 | 73.9°F (1990) | 9.0°F (2019) | 0.48 in (1999) |
| October 29 | 72.0°F (1962) | 9.0°F (1971) | 0.38 in (2004) |
| October 30 | 70.0°F (1962) | 1.9°F (2019) | 0.66 in (1964) |
| October 31 | 71.1°F (2014) | 9.0°F (2019) | 0.55 in (2001) |