Weather in Portsmouth, RI
Portsmouth, Sunday, 15 November, 03:15
Partly cloudy. Feels like 30°. High 48°, low 37°.
Monthly outlook for Portsmouth, RI: average high 50.8°, average low 39°. That is 1.2° above the climate normal for November. Precipitation is expected on 1 day (about 0.9 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 28 November (60.1°), the coolest 25 November (27.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 November – 24 November | 51.9° | 48.9° | +1.6° |
| 25 November – 4 December | 49.1° | 47.1° | +1.1° |
| 5 December – 14 December | at normal | 43.2° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Middletown (5 mi).
0
Portsmouth, Monday, 16 November
Overcast. High 47°, low 38°.
0
Portsmouth, Tuesday, 17 November
Clear. High 52°, low 38°.
0Portsmouth, Wednesday, 18 November
Overcast. High 56°, low 44°.
0Portsmouth, Thursday, 19 November
Overcast. High 56°, low 43°.
0Portsmouth, Friday, 20 November
Clear. High 58°, low 46°.
0Portsmouth, Saturday, 21 November
Clear. High 55°, low 43°.
0
Portsmouth, Sunday, 22 November
Light rain. High 53°, low 47°.
0.02
Portsmouth, Monday, 23 November
Snow. High 58°, low 39°.
0Portsmouth, Tuesday, 24 November
Overcast. High 35°, low 29°.
0Portsmouth, Wednesday, 25 November
Clear. High 41°, low 28°.
0Portsmouth, Thursday, 26 November
Clear. High 44°, low 29°.
0Portsmouth, Friday, 27 November
Overcast. High 50°, low 33°.
0.82Portsmouth, Saturday, 28 November
Rain. High 60°, low 49°.
0Portsmouth, Sunday, 29 November
Clear. High 54°, low 44°.
0Portsmouth, Monday, 30 November
Overcast. High 46°, low 39°.
0.13
Portsmouth, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.12
Portsmouth, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.19Portsmouth, Thursday, 3 December
Climate normal for this date — 60-year average.
0.11Portsmouth, Friday, 4 December
Climate normal for this date — 60-year average.
0.19Portsmouth, Saturday, 5 December
Climate normal for this date — 60-year average.
0.19Portsmouth, Sunday, 6 December
Climate normal for this date — 60-year average.
0.15Portsmouth, Monday, 7 December
Climate normal for this date — 60-year average.
0.11Portsmouth, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.23Portsmouth, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.12Portsmouth, Thursday, 10 December
Climate normal for this date — 60-year average.
0.23Portsmouth, Friday, 11 December
Climate normal for this date — 60-year average.
0.19Portsmouth, Saturday, 12 December
Climate normal for this date — 60-year average.
0.09Portsmouth, Sunday, 13 December
Climate normal for this date — 60-year average.
0.19Portsmouth, Monday, 14 December
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, RI 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, RI 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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