Log In
    Favorites
        Member Settings
      Frost Advisory
      until 8:00 AM PDT
      Elev 98 ft, 45.496 °N 122.765 °W

      Portland, OR

      West Slope Station45°
      Customize
      Mon 10/12
      66°
      38°
      Mostly Clear
      0
      Tue 10/13
      65°
      45°
      Partly Cloudy
      0
      Wed 10/14
      69°
      49°
      Partly Cloudy
      0
      Thu 10/15
      76°
      50°
      Sunny
      0
      Fri 10/16
      76°
      49°
      Mostly Sunny
      0.02
      Sat 10/17
      65°
      41°
      AM Showers
      0.02
      Sun 10/18
      62°
      45°
      AM Clouds/PM Sun
      0.1
      Mon 10/19
      55°
      44°
      Showers
      0.31
      Tue 10/20
      57°
      40°
      PM Showers
      0.03
      Wed 10/21
      59°
      41°
      Partly Cloudy
      0.04
              Additional Conditions
              1. Pressure 30.08 in
              2. Visibility 10 miles
              3. Clouds Clear
              4. Dew Point40°F
              5. Humidity 77%
              6. Rainfall 0 in
              7. Snow Depth 0 in
               KHIO Station History
              Almanac for October 12, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 66°F 67°F 82°F 1991
              4. Low 38°F 44°F 31°F 1981
              5. Rain/Snow Depth
              6. Precipitation 0 in - in -
              7. Snow 0 in - in -
              Almanac for October 13, 2026
              1. Forecast Average Record
              2. Temperature
              3. High 65°F 66°F 82°F
              4. Low 38°F 43°F 32°F
              Astronomy
              1. Sun Rise Set
              2. Actual Time 7:23 AM 6:30 PM
              3. Civil Twilight 6:53 AM 7:00 PM
              4. Nautical Twilight 6:19 AM 7:34PM
              5. Astronomical Twilight 5:45 AM 8:08 PM
              1. Length of Visible Light 12h 6m
              2. Length of Day 11h 6m
              3. Tomorrow will be 3 minutes 6 seconds shorter
              1. Moon 9:54 AM 7:03 PM
              2. Waxing Crescent4% of the Moon is Illuminated
              Oct 18
              Waxing Half First Qtr
              Oct 25
              Full Moon
              Nov 1
              Waning Half Last Qtr
              Nov 8
              New Moon
              Nearby Weather Stations
              Station Location
              Temp
              Windchill
              Heat Index
              Dew Point
              Humidity
              Wind
              Precip.
              Elev.
              Updated
              Loading nearby stations…
              Our AppsAbout UsContactCareers
              PWS NetworkWunderMap
              Trust CenterTerms of UsePrivacy PolicyData RightsPrivacy SettingsCookie NoticeData VendorsAccessibility Statement
              Level Access
              The Weather Company The Weather Channel Weather Underground Storm Radar
              © The Weather Company, LLC 2026
              Glossary