Current conditions at

Portland-Hillsboro Airport (KHIO)

Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.

Mostly Cloudy

48°F

9°C

Humidity 61%
Wind Speed WSW 12 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 15 Apr 02:50 PM PDT
Extended Forecast for

4 Miles NNE Hillsboro OR

Frost Advisory April 16, 01:00am until April 16, 09:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a slight chance of showers after 3am.  Patchy fog before 3am, then patchy fog after 4am. Areas of frost after 5am. Snow level 1600 feet. Low around 34. West southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%.

    Low: 34 °F

    Showers then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Patchy frost before 9am.  Otherwise, mostly sunny, with a high near 56. Calm wind becoming west around 5 mph in the afternoon.

    High: 56 °F

    Patchy Frost
    and Patchy
    Fog then
    Partly Sunny

  • Thursday Night

    Thursday Night: Patchy frost after 4am.  Otherwise, partly cloudy, with a low around 36. West wind around 5 mph becoming calm  in the evening.

    Low: 36 °F

    Partly Cloudy
    then Patchy
    Frost

  • Friday

    Friday: Partly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain.  Mostly cloudy, with a high near 68.

    High: 68 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm.  Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms before 1am, then a slight chance of showers after 3am. Patchy fog before 3am, then patchy fog after 4am. Areas of frost after 5am. Snow level 1600 feet. Low around 34. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Thursday
Patchy fog before 8am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 56. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Patchy frost after 4am. Otherwise, partly cloudy, with a low around 36. West wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 60. Calm wind.
Friday Night
Mostly cloudy, with a low around 41. Calm wind.
Saturday
Partly sunny, with a high near 66.
Saturday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 49.
Sunday
A chance of rain. Mostly cloudy, with a high near 68.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 47.
Monday
A slight chance of rain after 11am. Partly sunny, with a high near 70.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Mostly cloudy, with a high near 64.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Hillsboro OR
 45.6°N 122.91°W (Elev. 397 ft)
8:41 pm PDT Apr 15, 2026
9pm PDT Apr 15, 2026-6pm PDT Apr 22, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database