Portland, Oregon weather
Current conditions, hourly and 7-day forecast, official alerts, and air quality for Portland, United States. Coordinates 45.52, -122.68 · America/Los_Angeles.
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Portland, Oregon
United States · America/Los_Angeles
72°F
Mainly clear
Feels like 72° · High 73° / Low 56°
- Precipitation
- 0%
- Wind
- 11 NNWmph
- Humidity
- 46%
- Visibility
- 0.0mi
- Pressure
- 1015hPa
- Dew point
- 50°F
- UV index
- 5.5
- Air quality
- 30
Chance of measurable precipitation this hour
Sustained wind speed and direction
How much moisture the air holds
How far you can clearly see
Falling pressure often means unsettled weather
Above 65° feels muggy
8 or higher: limit midday sun
US EPA AQI · Good
Source updated: 2:29:56 AM · WeatherSignal checked: 2:29:56 AM
WeatherSignal Right Now
Plain-language answers calculated from this location's own forecast values — see how each one works on our methodology page.
Today's Weather Score
90/100
Excellent day
Starts at 100 and subtracts published penalties for heat, cold, rain, wind, UV, humidity, low visibility, and active official alerts.
- Visibility 0.0 mi-10
Right now
It's 72°, mainly clear, 46% humidity.
Today's high is 3° warmer than the average of the next 6 days.
Umbrella or nah?
Nah(Favourable)
Nothing in the next 12 hours reaches a 40% chance of rain. Peak chance is 0%.
Why
- Peak precipitation probability: 0%
- Total expected precipitation: 0.00″
Best time today
10 AM(Favourable)
10 AM has the most comfortable combination of temperature, rain chance, wind, and humidity in the remaining daylight hours.
Why
- Feels like 63°
- Rain chance 0%
- Wind 8 mph
- Humidity 62%
Car wash check
Go for it(Favourable)
No hour in the next 48 hours reaches a 50% chance of rain or measurable precipitation.
Why
- No precipitation at or above 50% chance within 48 hours
- Current wind: 11 mph
Dog walk window
7 PM(Favourable)
7 PM is the calmest hour in the 25–85° feels-like range with rain chance under 40%.
Why
- Feels like 72°
- Rain chance 0%
Cookout check
Green light(Favourable)
Between 4 PM and 9 PM: up to 0% rain chance, wind to 11 mph, feels like 64–73°.
Why
- Evening peak rain chance: 0%
- Evening peak wind: 11 mph
Windows down?
Roll 'em down(Favourable)
Feels like 72°, 0% rain chance, wind 11 mph. Comfortable range used here: 58–84° with rain chance under 20% and wind under 18 mph.
Why
- Feels like 72°
- Rain chance 0%
- Wind 11 mph
Hair weather
Behaving(Favourable)
Relative humidity is 46% with a 50° dew point. Moisture in the air is what swells hair strands, so dew point matters more than temperature.
Why
- Humidity 46%
- Dew point 50°
These are WeatherSignal calculations, not official forecasts or warnings. They never override guidance from your national weather service.
What this means
Generated from the forecast values above using fixed rules — not an AI guess.
- No significant precipitation is expected in the next 24 hours.
Next 24 hours
Will it rain during your commute? When does the storm arrive?
| Time | Condition | Temp | Feels | Precip % | Amount | Wind | Humidity |
|---|---|---|---|---|---|---|---|
| 7 PM | Mainly clear | 72° | 72° | 0% | 0.00″ | 11 NNW | 46% |
| 8 PM | Clear sky | 68° | 68° | 0% | 0.00″ | 11 NW | 54% |
| 9 PM | Mainly clear | 64° | 64° | 0% | 0.00″ | 10 NW | 56% |
| 10 PM | Mainly clear | 62° | 62° | 0% | 0.00″ | 9 NW | 63% |
| 11 PM | Partly cloudy | 60° | 60° | 0% | 0.00″ | 7 NW | 68% |
| 12 AM | Partly cloudy | 59° | 59° | 0% | 0.00″ | 6 NW | 72% |
| 1 AM | Mainly clear | 59° | 58° | 0% | 0.00″ | 5 WNW | 74% |
| 2 AM | Mainly clear | 57° | 58° | 0% | 0.00″ | 4 WSW | 77% |
| 3 AM | Mainly clear | 56° | 57° | 0% | 0.00″ | 3 SW | 80% |
| 4 AM | Clear sky | 56° | 56° | 0% | 0.00″ | 3 SSW | 81% |
| 5 AM | Partly cloudy | 56° | 56° | 0% | 0.00″ | 3 S | 83% |
| 6 AM | Overcast | 56° | 56° | 0% | 0.00″ | 4 SSW | 82% |
| 7 AM | Light rain | 57° | 57° | 0% | 0.01″ | 5 SSW | 79% |
| 8 AM | Light rain | 57° | 56° | 0% | 0.00″ | 6 SW | 81% |
| 9 AM | Partly cloudy | 59° | 59° | 0% | 0.00″ | 8 SW | 77% |
| 10 AM | Mainly clear | 63° | 63° | 0% | 0.00″ | 8 WSW | 62% |
| 11 AM | Light rain | 66° | 66° | 0% | 0.00″ | 7 W | 53% |
| 12 PM | Light rain | 68° | 68° | 0% | 0.00″ | 6 W | 47% |
| 1 PM | Partly cloudy | 70° | 70° | 0% | 0.00″ | 6 W | 43% |
| 2 PM | Partly cloudy | 72° | 72° | 0% | 0.00″ | 7 W | 39% |
| 3 PM | Overcast | 73° | 73° | 0% | 0.00″ | 7 W | 35% |
| 4 PM | Overcast | 73° | 73° | 0% | 0.00″ | 8 W | 35% |
| 5 PM | Overcast | 72° | 72° | 0% | 0.00″ | 10 WNW | 37% |
| 6 PM | Partly cloudy | 70° | 70° | 0% | 0.00″ | 10 NW | 42% |
7-day forecast
Confidence decreases the further out you look.
Today
Overcast
73° / 56°
- Precip:
- 0% · 0.02″
- Wind:
- 11 mph
- UV:
- 5.5
- Sun:
- 11 PM–11 AM
Sun, Aug 30
Partly cloudy
72° / 53°
- Precip:
- 0% · 0.00″
- Wind:
- 10 mph
- UV:
- 6.1
- Sun:
- 11 PM–11 AM
Mon, Aug 31
Clear sky
71° / 55°
- Precip:
- 0% · 0.00″
- Wind:
- 9 mph
- UV:
- 4.3
- Sun:
- 11 PM–11 AM
Tue, Sep 1
Clear sky
82° / 59°
- Precip:
- 0% · 0.00″
- Wind:
- 5 mph
- UV:
- 0.0
- Sun:
- 11 PM–11 AM
Wed, Sep 2
Clear sky
69° / 57°
- Precip:
- 0% · 0.00″
- Wind:
- 9 mph
- UV:
- 0.0
- Sun:
- 11 PM–11 AM
Lower confidence — long-range outlook, not a certainty.
Thu, Sep 3
Clear sky
63° / 54°
- Precip:
- 0% · 0.00″
- Wind:
- 10 mph
- UV:
- 0.0
- Sun:
- 11 PM–11 AM
Lower confidence — long-range outlook, not a certainty.
Fri, Sep 4
Clear sky
64° / 53°
- Precip:
- 0% · 0.00″
- Wind:
- 7 mph
- UV:
- 0.0
- Sun:
- 11 PM–11 AM
Lower confidence — long-range outlook, not a certainty.
Forecasts describe likely conditions, not guaranteed outcomes. Official warnings from your national weather service always take precedence over anything shown here.
Air quality
US EPA AQI · Good
- AQI
- 30
- Primary
- Ozone
- PM2.5
- 4.2µg/m³
- PM10
- 5.7µg/m³
- Ozone
- 58.0µg/m³
- Dust
- 0.0µg/m³
Good
Highest measured pollutant
Air quality is satisfactory for outdoor activity.
Air-quality guidance comes from the published category definitions of the source scale. WeatherSignal does not provide medical advice.
Source updated: not provided · WeatherSignal checked: 2:29:56 AM