Portland Weather in October
Average highs run from 70°F on October 1 to 57°F on October 31, and lows from 52°F to 44°F. Normal precipitation for the month is 3.96 in over about 13 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
- 63°F
- Average low
- 48°F
- Precipitation
- 3.96 in
- Record high
- 92°FOct 1, 1987
- Record low
- 26°FOct 28, 1946
- Chance of a freeze
- 1%
- Daylight
- 11 h 42 min to 10 h 10 min
- Cloud cover
- 63%
- Humidity
- 79%
- Dew point
- 44°F
- Wind
- 5.1 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 | 70°F | 52°F | 92°F 1987 | 33°F 1950 | 31% | 0% |
| Oct 2 | 69°F | 52°F | 90°F 1970 | 37°F 1950 | 31% | 0% |
| Oct 3 | 69°F | 51°F | 86°F 1979 | 38°F 1964 | 32% | 0% |
| Oct 4 | 68°F | 51°F | 84°F 1952 | 37°F 1973 | 33% | 0% |
| Oct 5 | 68°F | 51°F | 90°F 1980 | 37°F 1956 | 33% | 0% |
| Oct 6 | 67°F | 51°F | 89°F 1952 | 37°F 1972 | 34% | 0% |
| Oct 7 | 67°F | 50°F | 85°F 2023 | 33°F 1970 | 35% | 0% |
| Oct 8 | 66°F | 50°F | 87°F 2022 | 32°F 1985 | 35% | 0% |
| Oct 9 | 66°F | 50°F | 85°F 2022 | 30°F 1985 | 36% | 0% |
| Oct 10 | 65°F | 49°F | 85°F 1991 | 33°F 2019 | 37% | 0% |
| Oct 11 | 65°F | 49°F | 86°F 1991 | 37°F 1946 | 37% | 0% |
| Oct 12 | 65°F | 49°F | 80°F 2022 | 38°F 2019 | 38% | 0% |
| Oct 13 | 64°F | 49°F | 84°F 2022 | 35°F 1966 | 39% | 0% |
| Oct 14 | 64°F | 48°F | 82°F 1991 | 31°F 1969 | 39% | 0% |
| Oct 15 | 63°F | 48°F | 87°F 2022 | 33°F 1992 | 40% | 0% |
| Oct 16 | 63°F | 48°F | 86°F 2022 | 30°F 1946 | 41% | 0% |
| Oct 17 | 62°F | 48°F | 79°F 1952 | 33°F 1971 | 42% | 0% |
| Oct 18 | 62°F | 47°F | 78°F 1940 | 31°F 1949 | 42% | 0% |
| Oct 19 | 61°F | 47°F | 78°F 1940 | 27°F 1949 | 43% | 0% |
| Oct 20 | 61°F | 47°F | 77°F 2003 | 28°F 1949 | 44% | 0% |
| Oct 21 | 61°F | 47°F | 81°F 2003 | 30°F 1949 | 45% | 0% |
| Oct 22 | 60°F | 46°F | 76°F 1938 | 33°F 1980 | 45% | 0% |
| Oct 23 | 60°F | 46°F | 75°F 2007 | 32°F 1964 | 46% | 0% |
| Oct 24 | 59°F | 46°F | 73°F 1962 | 30°F 1958 | 47% | 0% |
| Oct 25 | 59°F | 46°F | 74°F 1965 | 34°F 1978 | 48% | 0% |
| Oct 26 | 59°F | 45°F | 74°F 1987 | 29°F 2020 | 48% | 0% |
| Oct 27 | 58°F | 45°F | 75°F 1944 | 31°F 1970 | 49% | 0% |
| Oct 28 | 58°F | 45°F | 72°F 2003 | 26°F 1946 | 50% | 0% |
| Oct 29 | 58°F | 45°F | 71°F 1962 | 26°F 1971 | 51% | 0% |
| Oct 30 | 57°F | 45°F | 69°F 1939 | 27°F 1991 | 51% | 0% |
| Oct 31 | 57°F | 44°F | 71°F 1954 | 28°F 1995 | 52% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- October 1
- sunrise 7:09 AM, sunset 6:51 PM
- October 31
- sunrise 7:49 AM, sunset 5:59 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356749 (Portland Kgw-TV), public domain. Records: NOAA GHCN-Daily, station USW00024229, 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.