Tualatin, Oregon Weather
Tualatin weather this week
Over the next 7 days in Tualatin, daytime highs range from 8°C to 14°C and night-time lows from 4°C to 9°C. The warmest afternoon is likely tomorrow at 14°C, while the coolest night is expected on Thursday night at 4°C. Temperatures trend cooler through the week, dropping by about 3°C.
Rain is most likely today, tomorrow, Sunday, Monday, Tuesday and Wednesday, with roughly 35 mm forecast in total over the week.
Winds stay mostly light this week, peaking at about 25 km/h on Sunday. UV levels stay moderate or lower, peaking at 2. Average humidity is high at around 82%, which can make it feel muggy.
| Day | Conditions | High / Low | Rain chance | Rain | Max wind |
|---|---|---|---|---|---|
| Today (Friday) | Slight rain | 12° / 9° | 93% | 7.8 mm | 18 km/h |
| Tomorrow (Saturday) | Rain | 14° / 9° | 89% | 6.6 mm | 23 km/h |
| Sunday | Rain | 11° / 8° | 81% | 9.3 mm | 25 km/h |
| Monday | Drizzle | 11° / 6° | 54% | 2.1 mm | 18 km/h |
| Tuesday | Overcast | 13° / 6° | 63% | 0.0 mm | 9 km/h |
| Wednesday | Dense drizzle | 8° / 5° | 63% | 9.6 mm | 10 km/h |
| Thursday | Overcast | 9° / 4° | 17% | 0.0 mm | 11 km/h |
Hourly forecast in Tualatin
16-day forecast for Tualatin
Check any date
Tualatin air quality & conditions
Air quality index
Today's outlook for Tualatin
At 20:00 local time it is 10°C in Tualatin under clear skies, feeling like 7°C. Today's forecast high is 12°C and the low is 9°C, and the day overall looks rainy. Rain is likely today (93% chance, around 7.8 mm), so keep an umbrella handy. Winds are blowing at about 9 km/h from the south. Humidity is 85%.
Explore nearby
Weather articles
Weather news
Climate of Tualatin: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), August is usually the hottest month in Tualatin, with average daytime highs around 28°C. December is the coolest, when nights typically fall to about 0°C and frost is possible on the coldest nights.
The area receives about 1480 mm of rain in a typical year. Most of it falls from October to April (around 85% of the yearly total), and December is the wettest month at roughly 251 mm.
For outdoor plans and travel, June to September usually offer the most comfortable weather in Tualatin, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 7° | 1° | 216 mm | 92% |
| Feb | 8° | 1° | 144 mm | 89% |
| Mar | 10° | 2° | 178 mm | 87% |
| Apr | 13° | 4° | 119 mm | 84% |
| May | 17° | 7° | 79 mm | 82% |
| Jun | 21° | 9° | 55 mm | 80% |
| Jul | 26° | 12° | 11 mm | 70% |
| Aug | 28° | 12° | 20 mm | 65% |
| Sep | 23° | 10° | 57 mm | 68% |
| Oct | 16° | 6° | 137 mm | 80% |
| Nov | 10° | 3° | 217 mm | 89% |
| Dec | 6° | 0° | 251 mm | 92% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Tualatin. Values describe typical conditions, not a forecast.
About Tualatin weather
Tualatin is one of many towns in Oregon's climate divide — mild, wet Pacific coast and Willamette Valley to the west, drier high desert east of the Cascades, about 16 km south-west of Portland. Before the rains arrive, there's warm, dry summers (June–September) west of the Cascades. Cooler months mean mild, wet winters (November–March) in the west, colder and snowier in the east. This page shows live, auto-refreshing weather for Tualatin: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/Los_Angeles.
Frequently asked questions
Tualatin is about 16 km south-west of Portland, in Oregon.
Tualatin sees mild, wet winters (November–March) in the west, colder and snowier in the east.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Tualatin's exact coordinates. No fixed schedule, the page updates whenever you load it.
August is usually the hottest month in Tualatin, with average daytime highs of about 28°C and nights around 12°C.
The coldest nights come in December, when the average low is about 0°C and daytime highs reach around 6°C. Frost is possible on clear, calm nights.
Tualatin receives about 1480 mm of rain in a typical year. December is the wettest month at roughly 251 mm, and the main rainy period is October to April.
June to September usually offer the most comfortable weather in Tualatin, with mild daytime temperatures and little rain.
In November Tualatin typically sees daytime highs near 10°C and lows near 3°C, with about 217 mm of rain over the month and average humidity around 89%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Tualatin is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Tualatin's day-to-day weather follows the broader pattern of Oregon described above. See the hourly weather forecast or the air quality index for more detail.