Weather in Portsmouth, VA
Portsmouth, Tuesday, 27 October, 09:20
Mostly clear. Feels like 57°. High 70°, low 46°.
Monthly outlook for Portsmouth, VA: average high 67.4°, average low 54.9°. That is 2° above the climate normal for October. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 30 October (73.4°), the coolest 27 October (45.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 69.3° | 65° | +2.4° |
| 6 November – 15 November | 64.3° | 61° | +1.8° |
| 16 November – 25 November | at normal | 58° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Norfolk (6 mi).
0
Portsmouth, Wednesday, 28 October
Clear. High 72°, low 53°.
0Portsmouth, Thursday, 29 October
Clear. High 69°, low 53°.
0Portsmouth, Friday, 30 October
Mostly clear. High 73°, low 54°.
0
Portsmouth, Saturday, 31 October
Overcast. High 63°, low 58°.
0Portsmouth, Sunday, 1 November
Overcast. High 69°, low 57°.
0.09
Portsmouth, Monday, 2 November
Light rain. High 72°, low 57°.
0.08Portsmouth, Tuesday, 3 November
Light rain. High 69°, low 64°.
0.29Portsmouth, Wednesday, 4 November
Light rain. High 64°, low 62°.
0.46Portsmouth, Thursday, 5 November
Rain. High 71°, low 63°.
0.06Portsmouth, Friday, 6 November
Light rain. High 72°, low 63°.
0Portsmouth, Saturday, 7 November
Clear. High 61°, low 50°.
0Portsmouth, Sunday, 8 November
Clear. High 57°, low 47°.
0Portsmouth, Monday, 9 November
Overcast. High 62°, low 48°.
0Portsmouth, Tuesday, 10 November
Overcast. High 64°, low 50°.
0.06Portsmouth, Wednesday, 11 November
Light rain. High 70°, low 56°.
0.24
Portsmouth, Thursday, 12 November
Climate normal for this date — 60-year average.
0.14
Portsmouth, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Portsmouth, Saturday, 14 November
Climate normal for this date — 60-year average.
0.11Portsmouth, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Portsmouth, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Portsmouth, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.02Portsmouth, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Portsmouth, Thursday, 19 November
Climate normal for this date — 60-year average.
0.04Portsmouth, Friday, 20 November
Climate normal for this date — 60-year average.
0.08Portsmouth, Saturday, 21 November
Climate normal for this date — 60-year average.
0.15Portsmouth, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Portsmouth, Monday, 23 November
Climate normal for this date — 60-year average.
0.09Portsmouth, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.11Portsmouth, Wednesday, 25 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 Portsmouth, VA 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 Portsmouth, VA 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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