Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Current conditions at

Portland-Hillsboro Airport (KHIO)

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

Clear

37°F

3°C

Humidity 86%
Wind Speed N 0 MPH
Barometer 30.42 in (1030.14 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 15 Mar 03:10 AM PDT
Extended Forecast for

5 Miles S Scappoose Industrial Apk (1s4) OR

  • Overnight

    Overnight: Areas of frost before 4am.  Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Areas Frost

  • Sunday

    Sunday: A slight chance of rain and snow between 10am and 11am, then a chance of rain.  Snow level 600 feet rising to 7200 feet in the afternoon. Mostly cloudy, with a high near 50. Calm wind.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 50 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm, then a slight chance of rain after 3am.  Mostly cloudy, with a low around 43. Calm wind.  Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Rain

  • Monday

    Monday: A 20 percent chance of rain.  Partly sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.

    High: 64 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: A 30 percent chance of rain after 11pm.  Mostly cloudy, with a low around 48. South wind around 5 mph becoming calm  in the evening.

    Low: 48 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely.  Cloudy, with a high near 58. Chance of precipitation is 70%.

    High: 58 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely.  Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain.  Cloudy, with a high near 59.

    High: 59 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely.  Cloudy, with a low around 51.

    Low: 51 °F

    Rain Likely

Detailed Forecast

Overnight
Areas of frost before 4am. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Sunday
A slight chance of rain and snow between 10am and 11am, then a chance of rain. Snow level 600 feet rising to 7200 feet in the afternoon. Mostly cloudy, with a high near 50. Calm wind. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
A slight chance of rain before 11pm, then a slight chance of rain after 3am. Mostly cloudy, with a low around 43. Calm wind. Chance of precipitation is 20%.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 48. South wind around 5 mph becoming calm in the evening.
Tuesday
Rain likely. Cloudy, with a high near 58. Chance of precipitation is 70%.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Wednesday
Rain. Cloudy, with a high near 59.
Wednesday Night
Rain likely. Cloudy, with a low around 51.
Thursday
Rain likely. Cloudy, with a high near 63.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 51.
Friday
A chance of rain. Mostly cloudy, with a high near 65.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48.
Saturday
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:
5 Miles S Scappoose Industrial Apk (1s4) OR
 45.69°N 122.87°W (Elev. 171 ft)
2:41 am PDT Mar 15, 2026
3am PDT Mar 15, 2026-6pm PDT Mar 21, 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