Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Mostly Cloudy

55°F

13°C

Humidity 87%
Wind Speed E 3 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 04 Sep 01:35 AM PDT
Extended Forecast for

3 Miles ENE Hillsboro OR

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 4am.  Mostly cloudy, with a steady temperature around 54. Calm wind.

    Low: 54 °F

    Chance
    Showers

  • Friday

    Friday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 72. Calm wind.

    High: 72 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 51. Calm wind.

    Low: 51 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind.

    High: 74 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 77.

    High: 77 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Labor Day

    Labor Day: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 77.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 4am. Mostly cloudy, with a steady temperature around 54. Calm wind.
Friday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 72. Calm wind.
Friday Night
Increasing clouds, with a low around 51. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Calm wind.
Saturday Night
Partly cloudy, with a low around 52. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 77.
Sunday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 54.
Labor Day
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Hillsboro OR
 45.54°N 122.86°W (Elev. 200 ft)
1:41 am PDT Sep 4, 2026
1am PDT Sep 4, 2026-6pm PDT Sep 10, 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