News Headlines
Hazardous Weather Conditions
Current conditions at
Portland-Hillsboro Airport (KHIO)
Lat: 45.54765°NLon: 122.95568°WElev: 194.0ft.
Rain
48°F
9°C
| Humidity | 89% |
| Wind Speed | S 16 MPH |
| Barometer | 29.8 in (1009.14 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 9.00 mi |
| Wind Chill | 42°F (6°C) |
| Last update | 15 Apr 01:39 AM PDT |
Extended Forecast for
Hillsboro OR
Frost Advisory April 16, 01:00am until April 16, 09:00am
Overnight

Low: 39 °F
Rain
Wednesday

High: 52 °F
Showers
Wednesday Night
Low: 34 °F
Showers
Likely then
Patchy Frost
and Patchy
FogThursday

High: 56 °F
Slight Chance
Showers and
Patchy FogThursday Night
Low: 38 °F
Partly Cloudy
then Patchy
FogFriday

High: 60 °F
Partly Sunny
Friday Night

Low: 40 °F
Mostly Cloudy
Saturday

High: 67 °F
Slight Chance
RainSaturday Night

Low: 48 °F
Chance Rain
Detailed Forecast
Overnight
Rain, mainly before 4am. Snow level 4200 feet lowering to 2000 feet. Low around 39. Southwest wind 6 to 9 mph becoming northwest. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain and possibly a thunderstorm before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Snow level 1800 feet. High near 52. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely, mainly before 10pm. Patchy fog after 2am. Patchy frost after 1am. Snow level 1700 feet. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers after 11am. Patchy fog before 9am. Patchy frost before 9am. Snow level 1900 feet rising to 3200 feet in the afternoon. Otherwise, partly sunny, with a high near 56. Light southwest wind.
Thursday Night
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 38. West wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
A slight chance of rain after 11am. Partly sunny, with a high near 67.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 48.
Sunday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 68.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 47.
Monday
A chance of rain. Partly sunny, with a high near 72.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 70.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Hillsboro OR
45.53°N 122.92°W (Elev. 200 ft)
45.53°N 122.92°W (Elev. 200 ft)
1:41 am PDT Apr 15, 2026
1am PDT Apr 15, 2026-6pm PDT Apr 21, 2026



