Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 82°F. Select a day from the live weather forecast for Portsmouth, Dominica for more weather parameters.

Thursday
19th Feb
82

73

6

10
Friday
20th Feb
81

73

7

10
Saturday
21st Feb
82

73

7

11
Sunday
22nd Feb
82

73

7

11
Monday
23rd Feb
82

73

8

11

5-day weather forecast updated at 04:04 on Thursday 19th February 2026 GMT

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The 5-day weather forecast for Dominica (Portsmouth) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Portsmouth weather forecast by day

Below are the detailed weather forecasts for Portsmouth for the next 5 days.

Portsmouth weather for Thursday 19th February 2026

Expect sunshine and showers in Portsmouth, Dominica with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a moderate breeze of 12 mph from the east.

82
°F maximum temperature
73
°F minimum temperature
sunshine and showers
6
hours of sunshine
10
UV index (Very High)
18
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
12
mph wind from E

Portsmouth weather for Friday 20th February 2026

Expect broken clouds in Portsmouth, Dominica with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 15 mph from the east.

81
°F maximum temperature
73
°F minimum temperature
broken clouds
7
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
15
mph wind from E

Portsmouth weather for Saturday 21st February 2026

Expect sunshine and showers in Portsmouth, Dominica with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 15% chance of some rain and a moderate breeze of 14 mph from the east.

82
°F maximum temperature
73
°F minimum temperature
sunshine and showers
7
hours of sunshine
11
UV index (Extreme)
15
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
14
mph wind from E

Portsmouth weather for Sunday 22nd February 2026

Expect broken clouds in Portsmouth, Dominica with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 13 mph from the east.

82
°F maximum temperature
73
°F minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
L
low heat & humidity
13
mph wind from E

Portsmouth weather for Monday 23rd February 2026

Expect isolated thunderstorms in Portsmouth, Dominica with a maximum temperature of 82°F, low levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a moderate breeze of 12 mph from the east.