Weather in Portland, TN
Portland, Wednesday, 21 October, 15:52
Clear. Feels like 73°. High 75°, low 42°.
Monthly outlook for Portland, TN: average high 69.2°, average low 50°. That is 2.7° above the climate normal for October. Precipitation is expected on 3 days (about 2.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 28 October (75.9°), the coolest 29 October (38.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 70.5° | 65.4° | +2.8° |
| 31 October – 9 November | 66.9° | 61.6° | +3° |
| 10 November – 19 November | at normal | 56.8° | — |
October records over 66 years
0Portland, Thursday, 22 October
Clear. High 74°, low 43°.
0Portland, Friday, 23 October
Clear. High 70°, low 42°.
0
Portland, Saturday, 24 October
Mostly clear. High 73°, low 49°.
0Portland, Sunday, 25 October
Clear. High 73°, low 50°.
0
Portland, Monday, 26 October
Overcast. High 72°, low 52°.
0Portland, Tuesday, 27 October
Overcast. High 70°, low 53°.
0Portland, Wednesday, 28 October
Overcast. High 76°, low 52°.
0
Portland, Thursday, 29 October
Partly cloudy. High 59°, low 39°.
0Portland, Friday, 30 October
Overcast. High 62°, low 40°.
0Portland, Saturday, 31 October
Overcast. High 69°, low 44°.
0.33
Portland, Sunday, 1 November
Rain. High 62°, low 53°.
1.07Portland, Monday, 2 November
Rain. High 68°, low 62°.
0.74Portland, Tuesday, 3 November
Rain. High 70°, low 63°.
0.02Portland, Wednesday, 4 November
Light rain. High 70°, low 61°.
0Portland, Thursday, 5 November
Overcast. High 62°, low 55°.
0.15
Portland, Friday, 6 November
Climate normal for this date — 60-year average.
0.19Portland, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Portland, Sunday, 8 November
Climate normal for this date — 60-year average.
0.16Portland, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Portland, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Portland, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Portland, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Portland, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Portland, Saturday, 14 November
Climate normal for this date — 60-year average.
0.16Portland, Sunday, 15 November
Climate normal for this date — 60-year average.
0.15Portland, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Portland, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Portland, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.14Portland, Thursday, 19 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, TN 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, TN 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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