Weather in Portland, TN
Portland, Wednesday, 21 October, 04:16
Clear. Feels like 43°. High 75°, low 43°.
Monthly outlook for Portland, TN: average high 70.2°, average low 51.4°. That is 3.2° above the climate normal for October. Precipitation is expected on 3 days (about 1.9 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 4 November (77°), the coolest 30 October (36.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 71° | 65.4° | +3.1° |
| 31 October – 9 November | 68.7° | 61.6° | +3.9° |
| 10 November – 19 November | at normal | 56.8° | — |
October records over 66 years
0
Portland, Thursday, 22 October
Clear. High 75°, low 45°.
0Portland, Friday, 23 October
Clear. High 71°, low 49°.
0
Portland, Saturday, 24 October
Mostly clear. High 74°, low 51°.
0Portland, Sunday, 25 October
Clear. High 74°, low 53°.
0
Portland, Monday, 26 October
Overcast. High 73°, low 54°.
0Portland, Tuesday, 27 October
Overcast. High 72°, low 53°.
0
Portland, Wednesday, 28 October
Partly cloudy. High 74°, low 57°.
0Portland, Thursday, 29 October
Overcast. High 63°, low 47°.
0Portland, Friday, 30 October
Overcast. High 59°, low 37°.
0Portland, Saturday, 31 October
Overcast. High 65°, low 43°.
0.24
Portland, Sunday, 1 November
Light rain. High 59°, low 51°.
0.33Portland, Monday, 2 November
Rain. High 64°, low 53°.
0Portland, Tuesday, 3 November
Overcast. High 75°, low 58°.
0Portland, Wednesday, 4 November
Overcast. High 77°, low 64°.
1.29Portland, Thursday, 5 November
Rain. High 72°, low 66°.
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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