Tomorrow in Portland (Oregon): Cool and partly cloudy, high of 13°

Sunday 1 November at Portland International Airport (PDX), United States

Tomorrow at PDX

High13°

Likely 11°–15°

Partly cloudy

Low 4°, likely 2°–7°

15% chance of rain
Wind up to 15 km/h
Humidity 87%

Through the day

Times are local; night hours are shaded. The line is a sketch, not an hour-by-hour forecast: this airport's typical daily temperature cycle, scaled to tomorrow's high and low.

Tomorrow's high should be 2° cooler than the normal high for 1 November. Rain is less likely than usual: 15% against a normal 59% for the date. Watch for fog, especially early (27%).

How sure we are

Shaded: the likely range (an 80% range). In our tests, eight days in ten ended inside it.

Right now at PDX

6°, haze or mist, wind from the south at 6 km/h.

Latest airport report, 10:00 local time.

The details

Chance of rain: 15% normal 59%
Chance of thunder: 1% or less
Chance of fog: 27%
Strongest wind: 15 km/h
Strongest gust: 15 km/h
Average humidity: 87%
Daytime sky: Partly cloudy

Chances are for the local day. Rain means rain, drizzle or snow in at least one hourly airport report; fog means fog or visibility under 1 km in at least one. "Normal" is this airport's usual chance for the date. Wind and gust are the strongest of the day.

How our forecasts did here

Each band is the forecast high ±2°, each dot what the airport measured. Highs more than 2° off are in bold. Rained means rain or snow was reported that day.
Day	High forecast	High measured	Low forecast	Low measured	Rain chance	Rained
Fri 30 Oct	13°	14°	6°	8°	92%	Yes
Thu 29 Oct	12°	13°	6°	8°	95%	Yes
Wed 28 Oct	12°	13°	8°	9°	97%	Yes
Tue 27 Oct	14°	14°	9°	11°	95%	Yes
Sun 25 Oct	15°	11°	8°	9°	81%	Yes
Fri 23 Oct	16°	16°	7°	8°	33%	No
Thu 22 Oct	18°	18°	10°	7°	70%	No
Wed 21 Oct	23°	23°	10°	6°	33%	No
Tue 20 Oct	19°	24°	8°	9°	19%	No
Sun 18 Oct	20°	19°	8°	6°	8%	No
Sat 17 Oct	21°	18°	11°	11°	43%	Yes
Fri 16 Oct	27°	25°	12°	10°	2%	No
Thu 15 Oct	24°	26°	9°	10°	2%	No
Wed 14 Oct	19°	22°	7°	9°	23%	No

The forecast high was within 2° on 10 of the last 14 scored days. Days that could not be scored are left out. Forecasts before 27 October did not yet use ECMWF and were less accurate on average.

"Measured" is the highest and lowest hourly airport report of the local day. Official daily highs and lows can differ a little: at US airports the official high averages about 0.4° higher and the official low about 0.5° lower. More

Not for aviation or safety decisions. Disclaimer