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Portland Weather Forecast

Portland today reaches a high of 31°C and a low of 16°C. Over the extended forecast, temperatures range from 13°C to 34°C. Rain is expected on 1 day of the outlook.

DayConditionsHighLowRain
Tue 14 JulPartly cloudy31°C16°C0.0 mm
Wed 15 JulOvercast30°C16°C0.0 mm
Thu 16 JulRain22°C14°C9.8 mm
Fri 17 JulDrizzle24°C13°C0.2 mm
Sat 18 JulOvercast25°C14°C0.0 mm
Sun 19 JulPartly cloudy30°C15°C0.0 mm
Mon 20 JulOvercast33°C18°C0.0 mm
Tue 21 JulOvercast34°C20°C0.0 mm
Wed 22 JulClear33°C19°C0.0 mm
Thu 23 JulClear31°C16°C0.0 mm

Extended weather forecast for Portland, Oregon, United States powered by two global forecast models, ECMWF and GFS, with hourly detail and up to a 15-day outlook. Temperature, rainfall, wind and more — opening the interactive forecast now.

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Global · ECMWF IFS · Updated hourly
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📊 Chart Parameters

MSLP & 3h Precipitation
Mean Sea Level Pressure contours overlaid with 3-hourly precipitation shading. Shows where weather systems are located and where rain or snow is falling.
Thickness & Precipitation
Atmospheric thickness contours overlaid with precipitation. Blue contours indicate cold air masses; red/purple contours indicate warm air. A useful guide to whether precipitation is falling as rain or snow.
850 hPa Temperature
Temperature at approximately 1,500 metres above sea level. A good indicator of the overall warmth or coldness of an air mass affecting a region.
500 hPa Temperature
Temperature at approximately 5,500 metres above sea level. Cold air at this level is associated with instability, thunderstorms and heavy precipitation.
700 hPa Relative Humidity
Humidity at approximately 3,000 metres above sea level. High values indicate moist air and cloud at mid-levels, often associated with significant rainfall or snowfall.
Accumulated Precipitation
Total rainfall and snowfall accumulation from the start of the model run. Useful for identifying regions receiving persistent or heavy precipitation over the forecast period.
Snow Level
The altitude (metres above sea level) where precipitation is falling as snow. Lower values mean snow is reaching lower elevations. Only shown where precipitation is occurring.

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