Shelley Weather in October
Average highs run from 67°F on October 1 to 51°F on October 31, and lows from 36°F to 26°F. Normal precipitation for the month is 0.88 in over about 7 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 59°F
- Average low
- 31°F
- Precipitation
- 0.88 in
- Snowfall
- 1.7 in
- Record high
- 88°FOct 2, 2010
- Record low
- -3°FOct 30, 2019
- Chance of a freeze
- 100%
- Daylight
- 11 h 43 min to 10 h 18 min
- Cloud cover
- 55%
- Humidity
- 58%
- Dew point
- 28°F
- Wind
- 8.5 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Oct 1 | 67°F | 36°F | 87°F 1992 | 21°F 1985 | 20% | 2% |
| Oct 2 | 67°F | 36°F | 88°F 2010 | 24°F 1950 | 20% | 2% |
| Oct 3 | 66°F | 35°F | 86°F 2010 | 22°F 2002 | 20% | 2% |
| Oct 4 | 66°F | 35°F | 84°F 2024 | 24°F 1973 | 20% | 2% |
| Oct 5 | 65°F | 35°F | 82°F 2021 | 21°F 1981 | 20% | 2% |
| Oct 6 | 65°F | 34°F | 80°F 1954 | 21°F 2000 | 20% | 2% |
| Oct 7 | 64°F | 34°F | 79°F 1956 | 20°F 1985 | 20% | 2% |
| Oct 8 | 64°F | 34°F | 80°F 1953 | 18°F 1985 | 20% | 2% |
| Oct 9 | 63°F | 33°F | 82°F 2024 | 20°F 1968 | 20% | 3% |
| Oct 10 | 62°F | 33°F | 82°F 1951 | 13°F 2019 | 20% | 3% |
| Oct 11 | 62°F | 32°F | 80°F 1991 | 15°F 2019 | 20% | 3% |
| Oct 12 | 61°F | 32°F | 80°F 2024 | 13°F 2002 | 20% | 3% |
| Oct 13 | 61°F | 32°F | 79°F 1948 | 16°F 2002 | 20% | 3% |
| Oct 14 | 60°F | 31°F | 81°F 1958 | 17°F 1966 | 20% | 3% |
| Oct 15 | 60°F | 31°F | 78°F 2024 | 16°F 1966 | 20% | 3% |
| Oct 16 | 59°F | 31°F | 78°F 1955 | 17°F 1966 | 20% | 3% |
| Oct 17 | 59°F | 30°F | 77°F 1955 | 15°F 1999 | 20% | 4% |
| Oct 18 | 58°F | 30°F | 78°F 1955 | 18°F 1966 | 20% | 4% |
| Oct 19 | 57°F | 30°F | 75°F 1954 | 14°F 1976 | 20% | 4% |
| Oct 20 | 57°F | 29°F | 78°F 2003 | 15°F 1982 | 20% | 4% |
| Oct 21 | 56°F | 29°F | 77°F 2003 | 19°F 1976 | 20% | 5% |
| Oct 22 | 56°F | 29°F | 79°F 2003 | 16°F 2020 | 20% | 5% |
| Oct 23 | 55°F | 28°F | 71°F 1948 | 13°F 2020 | 20% | 5% |
| Oct 24 | 55°F | 28°F | 74°F 1992 | 16°F 1980 | 20% | 5% |
| Oct 25 | 54°F | 28°F | 76°F 2014 | 8°F 2020 | 20% | 6% |
| Oct 26 | 54°F | 28°F | 71°F 1999 | 1°F 2020 | 20% | 6% |
| Oct 27 | 53°F | 27°F | 71°F 1990 | 12°F 2002 | 21% | 6% |
| Oct 28 | 53°F | 27°F | 72°F 1952 | 7°F 2019 | 21% | 7% |
| Oct 29 | 52°F | 27°F | 72°F 1968 | 3°F 2019 | 21% | 7% |
| Oct 30 | 52°F | 26°F | 69°F 2001 | -3°F 2019 | 21% | 7% |
| Oct 31 | 51°F | 26°F | 72°F 2014 | 1°F 2002 | 21% | 8% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- October 1
- sunrise 7:26 AM, sunset 7:09 PM
- October 31
- sunrise 8:03 AM, sunset 6:21 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024145 (Idaho Falls Fanning Fld), public domain. Records: NOAA GHCN-Daily, station USW00024145, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.