Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Mostly Cloudy

37°F

3°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 16 Apr 12:35 AM PDT
Extended Forecast for

4 Miles ENE Hillsboro OR

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

    Overnight: A 40 percent chance of showers, mainly before 3am.  Patchy frost after 4am. Snow level 1600 feet.  Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Chance
    Showers

  • Thursday

    Thursday: Patchy fog before 9am. Patchy frost before 8am.  Otherwise, mostly sunny, with a high near 58. Calm wind becoming west around 6 mph in the afternoon.

    High: 58 °F

    Patchy Frost
    and Patchy
    Fog then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy frost after 3am.  Otherwise, partly cloudy, with a low around 36. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Friday

    Friday: Patchy fog before 7am. Patchy frost before 7am.  Otherwise, mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Patchy Frost
    and Patchy
    Fog then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers.  Mostly cloudy, with a high near 69.

    High: 69 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of rain, mainly before 11pm.  Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

Detailed Forecast

Overnight
A 40 percent chance of showers, mainly before 3am. Patchy frost after 4am. Snow level 1600 feet. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Thursday
Patchy fog before 9am. Patchy frost before 8am. Otherwise, mostly sunny, with a high near 58. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Patchy frost after 3am. Otherwise, partly cloudy, with a low around 36. West northwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 7am. Patchy frost before 7am. Otherwise, mostly sunny, with a high near 62. Calm wind.
Friday Night
Mostly cloudy, with a low around 40. Calm wind.
Saturday
Partly sunny, with a high near 69.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday
A chance of showers. Mostly cloudy, with a high near 69.
Sunday Night
A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 49.
Monday
A chance of rain, mainly after 11am. Mostly cloudy, with a high near 70.
Monday Night
A chance of rain. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Mostly cloudy, with a high near 62.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Wednesday
A chance of rain. Mostly cloudy, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Hillsboro OR
 45.54°N 122.86°W (Elev. 200 ft)
12:41 am PDT Apr 16, 2026
12am PDT Apr 16, 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