Hillsboro, OR Weather & Growing Conditions
Today
96°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 96. North wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 96°F | Areas Of Smoke | 5 to 8 mph N | 0% |
| Tonight | 61°F | Smoke | 3 to 8 mph NNW | 0% |
| Wednesday | 100°F | Areas Of Smoke | 3 mph N | 0% |
| Wednesday Night | 62°F | Clear | 0 to 5 mph NNW | 0% |
| Thursday | 99°F | Sunny | 2 mph N | 0% |
| Thursday Night | 59°F | Clear | 0 to 6 mph NNW | 0% |
| Friday | 94°F | Sunny | 0 to 8 mph NNW | 0% |
| Friday Night | 57°F | Mostly Clear | 1 to 8 mph NNW | 0% |
| Saturday | 86°F | Sunny | 1 to 12 mph NNW | 0% |
| Saturday Night | 53°F | Mostly Clear | 1 to 12 mph NNW | 0% |
| Sunday | 82°F | Sunny | 1 to 9 mph NNW | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 to 9 mph NNW | 0% |
| Monday | 82°F | Sunny | 0 to 8 mph NNW | 0% |
| Monday Night | 52°F | Mostly Clear | 0 to 8 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hillsboro, OR
Last spring frost
Apr 16
First fall frost
Oct 23
Growing season
191 days
Hardiness zone
8b
Explore more for Hillsboro, OR: full frost dates · planting calendar · Oregon frost dates
Climate data from the nearest NOAA station, Portland-Hillsboro Ap, Or (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.