Weather in Portland, OR
Portland, Friday, 30 October, 23:47
Overcast. Feels like 40°. High 54°, low 41°.
Monthly outlook for Portland, OR: average high 57.5°, average low 46.8°. That is 1.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 9 days and 3.5 inches. The warmest day looks like 8 November (65.3°), the coolest 31 October (40.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 57.9° | 55.3° | +1.5° |
| 9 November – 18 November | 56.9° | 52.3° | +2.6° |
| 19 November – 28 November | at normal | 48.6° | — |
October records over 66 years
0Portland, Saturday, 31 October
Overcast. High 54°, low 41°.
0Portland, Sunday, 1 November
Overcast. High 53°, low 42°.
0Portland, Monday, 2 November
Overcast. High 54°, low 42°.
0
Portland, Tuesday, 3 November
Mostly clear. High 61°, low 46°.
0Portland, Wednesday, 4 November
Overcast. High 61°, low 47°.
0.01
Portland, Thursday, 5 November
Light rain. High 56°, low 45°.
0.38Portland, Friday, 6 November
Rain. High 59°, low 51°.
0Portland, Saturday, 7 November
Overcast. High 60°, low 48°.
0Portland, Sunday, 8 November
Overcast. High 65°, low 52°.
0.54Portland, Monday, 9 November
Rain. High 60°, low 54°.
0Portland, Tuesday, 10 November
Light rain. High 58°, low 50°.
0.12Portland, Wednesday, 11 November
Light rain. High 58°, low 48°.
0
Portland, Thursday, 12 November
Clear. High 58°, low 42°.
0.13Portland, Friday, 13 November
Light rain. High 55°, low 49°.
0Portland, Saturday, 14 November
Overcast. High 52°, low 50°.
0.23Portland, Sunday, 15 November
Climate normal for this date — 60-year average.
0.19Portland, Monday, 16 November
Climate normal for this date — 60-year average.
0.24Portland, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.17Portland, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.36Portland, Thursday, 19 November
Climate normal for this date — 60-year average.
0.24Portland, Friday, 20 November
Climate normal for this date — 60-year average.
0.24Portland, Saturday, 21 November
Climate normal for this date — 60-year average.
0.28Portland, Sunday, 22 November
Climate normal for this date — 60-year average.
0.28Portland, Monday, 23 November
Climate normal for this date — 60-year average.
0.3Portland, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.32Portland, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.2Portland, Thursday, 26 November
Climate normal for this date — 60-year average.
0.24Portland, Friday, 27 November
Climate normal for this date — 60-year average.
0.2Portland, Saturday, 28 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Portland, OR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Portland, OR since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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