Weather in Portland, ME
Portland, Sunday, 25 October, 17:35
Clear. Feels like 51°. High 64°, low 31°.
Monthly outlook for Portland, ME: average high 54.8°, average low 38.8°. That is 1.6° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (67.6°), the coolest 25 October (31°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 57.2° | 52.9° | +2.4° |
| 4 November – 13 November | 50.6° | 49.2° | +0.8° |
| 14 November – 23 November | at normal | 44.6° | — |
October records over 66 years
0Portland, Monday, 26 October
Clear. High 67°, low 33°.
0Portland, Tuesday, 27 October
Clear. High 49°, low 31°.
0Portland, Wednesday, 28 October
Clear. High 50°, low 32°.
0
Portland, Thursday, 29 October
Overcast. High 58°, low 37°.
0Portland, Friday, 30 October
Clear. High 68°, low 49°.
0Portland, Saturday, 31 October
Clear. High 53°, low 42°.
0Portland, Sunday, 1 November
Overcast. High 56°, low 39°.
0
Portland, Monday, 2 November
Partly cloudy. High 61°, low 45°.
0Portland, Tuesday, 3 November
Overcast. High 47°, low 37°.
0.03
Portland, Wednesday, 4 November
Light rain. High 49°, low 36°.
0.83Portland, Thursday, 5 November
Rain. High 47°, low 41°.
0Portland, Friday, 6 November
Overcast. High 55°, low 41°.
0Portland, Saturday, 7 November
Clear. High 52°, low 40°.
0Portland, Sunday, 8 November
Overcast. High 48°, low 39°.
0.28Portland, Monday, 9 November
Rain. High 53°, low 47°.
0.15
Portland, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Portland, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.13Portland, Thursday, 12 November
Climate normal for this date — 60-year average.
0.16Portland, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Portland, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Portland, Sunday, 15 November
Climate normal for this date — 60-year average.
0.19Portland, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Portland, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09Portland, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Portland, Thursday, 19 November
Climate normal for this date — 60-year average.
0.14Portland, Friday, 20 November
Climate normal for this date — 60-year average.
0.14Portland, Saturday, 21 November
Climate normal for this date — 60-year average.
0.15Portland, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Portland, Monday, 23 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, ME 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, ME 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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