Monthly outlook for Portsmouth, RI: average high 55.5°, average low 44.6°. That is 2.2° above the climate normal for November. Precipitation is expected on 2 days (about 2.7 inches), against a normal of 5 days and 2.1 inches. The warmest day looks like 5 November (69.4°), the coolest 13 November (32.3°).
55.5°/44.6°
Average high / low
+2.2°
Above normal
2 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
55.8°
52.6°
+1.8°
15 November – 24 November
55.1°
48.9°
+3.4°
25 November – 4 December
at normal
47.1°
—
November records over 66 years
72.1°7 November 2022All-time high
15.1°22 November 2018All-time low
Climate normals and records are computed from the nearest reference point — Middletown (5 mi).
Fri, 0667° / 60°1.65
67 °
Portsmouth, Friday, 6 November
Heavy rain. High 67°, low 60°.
Pressure29.88 inHg
Wind9.9 mph SW
Humidity98%
Visibility1.8 mi
Dew point61°
Sat, 0761° / 51°1.09
61 °
Portsmouth, Saturday, 7 November
Heavy rain. High 61°, low 51°.
Pressure29.77 inHg
Wind10.4 mph N
Humidity86%
Visibility6.2 mi
Dew point52°
Sun, 0858° / 47°0
58 °
Portsmouth, Sunday, 8 November
Light rain. High 58°, low 47°.
Pressure29.77 inHg
Wind15.9 mph W
Humidity58%
Visibility6.2 mi
Dew point43°
Mon, 0954° / 47°0
54 °
Portsmouth, Monday, 9 November
Overcast. High 54°, low 47°.
Pressure29.71 inHg
Wind14.8 mph W
Humidity57%
Visibility6.2 mi
Dew point39°
Tue, 1054° / 44°0
54 °
Portsmouth, Tuesday, 10 November
Overcast. High 54°, low 44°.
Pressure29.91 inHg
Wind11.6 mph W
Humidity69%
Visibility—
Dew point39°
Wed, 1158° / 47°0
58 °
Portsmouth, Wednesday, 11 November
Partly cloudy. High 58°, low 47°.
Pressure29.80 inHg
Wind8.6 mph NW
Humidity64%
Visibility—
Dew point42°
Thu, 1246° / 36°0
46 °
Portsmouth, Thursday, 12 November
Clear. High 46°, low 36°.
Pressure29.80 inHg
Wind10.4 mph NW
Humidity51%
Visibility—
Dew point25°
Fri, 1345° / 32°0
45 °
Portsmouth, Friday, 13 November
Clear. High 45°, low 32°.
Pressure29.85 inHg
Wind5.3 mph NW
Humidity52%
Visibility—
Dew point24°
Sat, 1446° / 35°0
46 °
Portsmouth, Saturday, 14 November
Overcast. High 46°, low 35°.
Pressure29.80 inHg
Wind10.2 mph NW
Humidity60%
Visibility—
Dew point29°
Sun, 1549° / 35°0
49 °
Portsmouth, Sunday, 15 November
Clear. High 49°, low 35°.
Pressure30.09 inHg
Wind9.8 mph W
Humidity54%
Visibility—
Dew point26°
Mon, 1658° / 40°0
58 °
Portsmouth, Monday, 16 November
Clear. High 58°, low 40°.
Pressure30.15 inHg
Wind10.8 mph W
Humidity54%
Visibility—
Dew point34°
Tue, 1755° / 42°0
55 °
Portsmouth, Tuesday, 17 November
Overcast. High 55°, low 42°.
Pressure30.06 inHg
Wind10.1 mph SW
Humidity59%
Visibility—
Dew point36°
Wed, 1854° / 42°0
54 °
Portsmouth, Wednesday, 18 November
Clear. High 54°, low 42°.
Pressure30.03 inHg
Wind11.4 mph N
Humidity62%
Visibility—
Dew point38°
Thu, 1954° / 42°0
54 °
Portsmouth, Thursday, 19 November
Partly cloudy. High 54°, low 42°.
Pressure30.33 inHg
Wind9.9 mph SW
Humidity73%
Visibility—
Dew point42°
Fri, 2061° / 52°0
61 °
Portsmouth, Friday, 20 November
Partly cloudy. High 61°, low 52°.
Pressure30.03 inHg
Wind12.5 mph SW
Humidity77%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2148° / 38°0.11
48 °
Portsmouth, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.11 in
Chance of precipitation32%
Record high61° (2020)
Record low21° (1987)
Sun, 2247° / 38°0.17
47 °
Portsmouth, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.17 in
Chance of precipitation37%
Record high59° (1994)
Record low15° (2018)
Mon, 2347° / 37°0.14
47 °
Portsmouth, Monday, 23 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.14 in
Chance of precipitation23%
Record high60° (1999)
Record low17° (2018)
Tue, 2447° / 37°0.09
47 °
Portsmouth, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high61° (1979)
Record low20° (1989)
Wed, 2548° / 37°0.17
48 °
Portsmouth, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.17 in
Chance of precipitation27%
Record high61° (1979)
Record low21° (2013)
Thu, 2649° / 39°0.18
49 °
Portsmouth, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.18 in
Chance of precipitation40%
Record high62° (1979)
Record low24° (1978)
Fri, 2749° / 38°0.12
49 °
Portsmouth, Friday, 27 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.12 in
Chance of precipitation37%
Record high60° (1999)
Record low22° (1978)
Sat, 2849° / 39°0.19
49 °
Portsmouth, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.19 in
Chance of precipitation33%
Record high60° (1990)
Record low19° (2002)
Sun, 2948° / 38°0.09
48 °
Portsmouth, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.09 in
Chance of precipitation23%
Record high60° (2011)
Record low25° (1996)
Mon, 3046° / 37°0.16
46 °
Portsmouth, Monday, 30 November
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.16 in
Chance of precipitation32%
Record high61° (2020)
Record low24° (1989)
Tue, 0146° / 37°0.13
46 °
Portsmouth, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high46°
Average low37°
Average precipitation0.13 in
Chance of precipitation40%
Record high63° (2001)
Record low19° (1989)
Wed, 0246° / 36°0.12
46 °
Portsmouth, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.12 in
Chance of precipitation27%
Record high60° (2006)
Record low16° (1989)
Thu, 0346° / 35°0.19
46 °
Portsmouth, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.19 in
Chance of precipitation37%
Record high61° (2009)
Record low14° (1976)
Fri, 0445° / 34°0.11
45 °
Portsmouth, Friday, 4 December
Climate normal for this date — 60-year average.
Average high45°
Average low34°
Average precipitation0.11 in
Chance of precipitation27%
Record high62° (1998)
Record low13° (1989)
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.