Weather in Portland, ME
Portland, Thursday, 29 October, 12:53
Clear. Feels like 62°. High 64°, low 40°.
Monthly outlook for Portland, ME: average high 53.9°, average low 40.3°. That is 2° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 2 November (64.9°), the coolest 1 November (32.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 58.2° | 51.7° | +3.6° |
| 8 November – 17 November | 46.9° | 47.2° | -0.2° |
| 18 November – 27 November | at normal | 43.5° | — |
October records over 66 years
0.15
Portland, Friday, 30 October
Rain. High 62°, low 48°.
0Portland, Saturday, 31 October
Clear. High 48°, low 36°.
0Portland, Sunday, 1 November
Clear. High 53°, low 32°.
0
Portland, Monday, 2 November
Partly cloudy. High 65°, low 40°.
0
Portland, Tuesday, 3 November
Overcast. High 59°, low 47°.
0Portland, Wednesday, 4 November
Overcast. High 51°, low 47°.
0Portland, Thursday, 5 November
Partly cloudy. High 58°, low 44°.
0.7Portland, Friday, 6 November
Rain. High 59°, low 54°.
0.1Portland, Saturday, 7 November
Light rain. High 63°, low 43°.
0Portland, Sunday, 8 November
Clear. High 45°, low 35°.
0Portland, Monday, 9 November
Overcast. High 48°, low 34°.
0
Portland, Tuesday, 10 November
Mostly clear. High 51°, low 33°.
0Portland, Wednesday, 11 November
Clear. High 48°, low 37°.
0Portland, Thursday, 12 November
Overcast. High 43°, low 35°.
0.02Portland, Friday, 13 November
Light rain. High 45°, low 40°.
0.09Portland, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11
Portland, 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.
0.07Portland, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.16Portland, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.21Portland, Thursday, 26 November
Climate normal for this date — 60-year average.
0.17Portland, Friday, 27 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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