Weather in Portland, ME
Portland, Sunday, 25 October, 22:11
Clear. Feels like 45°. High 65°, low 31°.
Monthly outlook for Portland, ME: average high 54.6°, average low 36.4°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 30 October (67.5°), the coolest 25 October (31°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 58.9° | 52.9° | +3.4° |
| 4 November – 13 November | 47.5° | 49.2° | -0.9° |
| 14 November – 23 November | at normal | 44.6° | — |
October records over 66 years
0
Portland, Monday, 26 October
Partly cloudy. High 67°, low 35°.
0
Portland, Tuesday, 27 October
Clear. High 51°, low 31°.
0Portland, Wednesday, 28 October
Clear. High 51°, low 32°.
0
Portland, Thursday, 29 October
Overcast. High 62°, low 38°.
0.1
Portland, Friday, 30 October
Light rain. High 68°, low 51°.
0Portland, Saturday, 31 October
Partly cloudy. High 56°, low 42°.
0Portland, Sunday, 1 November
Clear. High 59°, low 38°.
0.05Portland, Monday, 2 November
Light rain. High 59°, low 45°.
1.09
Portland, Tuesday, 3 November
Snow. High 51°, low 37°.
0Portland, Wednesday, 4 November
Clear. High 43°, low 32°.
0Portland, Thursday, 5 November
Clear. High 45°, low 32°.
0Portland, Friday, 6 November
Clear. High 46°, low 33°.
0Portland, Saturday, 7 November
Clear. High 51°, low 33°.
0.02Portland, Sunday, 8 November
Light rain. High 53°, low 37°.
0.28Portland, Monday, 9 November
Light rain. High 46°, low 35°.
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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