Portsmouth weather live forecast

Today's maximum temperature in Portsmouth is expected to be 50°F. Select a day from the live weather forecast for Portsmouth, England, UK for more weather parameters.

Wednesday
21st Jan
50

43

0

0
Thursday
22nd Jan
50

46

1

0
Friday
23rd Jan
48

45

1

0
Saturday
24th Jan
48

43

3

1
Sunday
25th Jan
43

39

2

0

5-day weather forecast updated at 04:02 on Wednesday 21st January 2026 GMT

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The 5-day weather forecast for England (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 Wednesday 21st January 2026

Expect mostly cloudy with rain in Portsmouth, England with a maximum temperature of 50°F and no hours of bright sunshine. There are 10-20 mm of rainfall expected with 88% chance of some rain and a strong breeze of 25 mph from the south-east.

50
°F maximum temperature
43
°F minimum temperature
mostly cloudy with rain
0
hours of sunshine
0
UV index (None)
88
% chance of some rain
<20
mm of rainfall expected
43
°F wind chill
25
mph wind from SE

Portsmouth weather for Thursday 22nd January 2026

Expect broken clouds in Portsmouth, England with a maximum temperature of 50°F and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the south-east.

50
°F maximum temperature
46
°F minimum temperature
broken clouds
1
hour of sunshine
0
UV index (None)
0
mm of rainfall expected
43
°F wind chill
16
mph wind from SE

Portsmouth weather for Friday 23rd January 2026

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 48°F and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 93% chance of some rain and a fresh breeze of 19 mph from the south-east.

48
°F maximum temperature
45
°F minimum temperature
mostly cloudy with light rain
1
hour of sunshine
0
UV index (None)
93
% chance of some rain
<2
mm of rainfall expected
41
°F wind chill
19
mph wind from SE

Portsmouth weather for Saturday 24th January 2026

Expect mostly cloudy with light rain in Portsmouth, England with a maximum temperature of 48°F, maximum UV of 1 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 31% chance of some rain and a moderate breeze of 14 mph from the south-east.

48
°F maximum temperature
43
°F minimum temperature
mostly cloudy with light rain
3
hours of sunshine
1
UV index (Low)
31
% chance of some rain
<2
mm of rainfall expected
43
°F wind chill
14
mph wind from SE

Portsmouth weather for Sunday 25th January 2026

Expect broken clouds in Portsmouth, England with a maximum temperature of 43°F and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 12 mph from the east.