Lake Sunapee weather live forecast

Today's maximum temperature in Lake Sunapee is expected to be 29°C. Select a day from the live weather forecast for Lake Sunapee, New Hampshire, USA for more weather parameters.

Wednesday
5th Aug
29

15

5

8
Thursday
6th Aug
29

19

8

6
Friday
7th Aug
31

21

7

7
Saturday
8th Aug
29

21

6

4
Sunday
9th Aug
30

20

9

8

5-day weather forecast updated at 04:02 on Wednesday 5th August 2026 GMT

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

Lake Sunapee weather forecast by day

Below are the detailed weather forecasts for Lake Sunapee for the next 5 days.

Lake Sunapee weather for Wednesday 5th August 2026

Expect broken clouds in Lake Sunapee, New Hampshire with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the south-west.

29
°C maximum temperature
15
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from SW

Lake Sunapee weather for Thursday 6th August 2026

Expect isolated thunderstorms in Lake Sunapee, New Hampshire with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 60% chance of some rain and a light breeze of 7 kph from the south-west.

29
°C maximum temperature
19
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
6
UV index (High)
60
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from SW

Lake Sunapee weather for Friday 7th August 2026

Expect broken clouds in Lake Sunapee, New Hampshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the west.

31
°C maximum temperature
21
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from W

Lake Sunapee weather for Saturday 8th August 2026

Expect isolated thunderstorms in Lake Sunapee, New Hampshire with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 4 (Moderate) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 69% chance of some rain and a light breeze of 10 kph from the west.

29
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
4
UV index (Moderate)
69
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from W

Lake Sunapee weather for Sunday 9th August 2026

Expect broken clouds in Lake Sunapee, New Hampshire with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.