14 day weather forecast
Thun weather August 2026 — 14 day forecast · Switzerland
cloudy · feels like 23°
- Live from Open-Meteo
- Refreshed several times a day
- 14 days ahead
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14 day weather forecast
cloudy · feels like 23°
Overview table · August 2026
The table below shows the full 14 day weather forecast for Thun (Switzerland): the maximum and minimum temperature, rainfall in millimetres, the chance of rain, humidity, hours of sunshine and the UV index per day. Across the next two weeks the maximum temperature in Thun averages around 27°C and the minimum around 17°C, with roughly 10 mm of rain in total, 11 dry days and about 166 hours of sunshine.
Last updated:
| Day | Weather | Max | Min | Rain | Chance | Humidity | Sun | UV |
|---|---|---|---|---|---|---|---|---|
| Saturday29 Aug | Cloudy | 24°C | 14°C | 0 mm | 5% | 75% | 12.4 h | 6high |
| Sunday30 Aug | Cloudy | 27°C | 15°C | 0 mm | 3% | 71% | 11.8 h | 6high |
| Monday31 Aug | Thunder | 24°C | 18°C | 0 mm | 28% | 66% | 12.6 h | 5moderate |
| Tuesday1 Sept | Cloudy | 23°C | 15°C | 0 mm | 0% | 68% | 12.4 h | 6high |
| Wednesday2 Sept | Cloudy | 22°C | 14°C | 0 mm | 3% | 71% | 8.9 h | 6high |
| Thursday3 Sept | Cloudy | 26°C | 15°C | 0 mm | 9% | 64% | 12.5 h | 6high |
| Friday4 Sept | Cloudy | 25°C | 17°C | 0 mm | 8% | 68% | 13 h | 5moderate |
| Saturday5 Sept | Sunny | 31°C | 17°C | 0 mm | 7% | 55% | 12.9 h | 6high |
| Sunday6 Sept | Light rain | 30°C | 17°C | 1.2 mm | 41% | 73% | 12.9 h | 6high |
| Monday7 Sept | Cloudy | 29°C | 18°C | 0 mm | 48% | 63% | 12.8 h | 3moderate |
| Tuesday8 Sept | Mostly sunny | 31°C | 18°C | 0 mm | 26% | 66% | 12.8 h | 5moderate |
| Wednesday9 Sept | Mostly sunny | 29°C | 18°C | 0 mm | 21% | 70% | 12.7 h | 5moderate |
| Thursday10 Sept | Light rain | 30°C | 18°C | 1.8 mm | 29% | 75% | 12.7 h | 2low |
| Friday11 Sept | Light rain | 20°C | 18°C | 6.6 mm | 40% | 89% | 5.7 h | 5moderate |
The first three to five days of the forecast for Thun are the most reliable; from day seven onwards it is an indicative trend. Click a day in the overview above for hourly detail. Source: Open-Meteo (Met Office, DWD, ECMWF).
Background & outlook
Current conditions and the 14 day forecast
Thun lies in Switzerland, an area with a continental climate: cold winters with frost and snow, warm summers, and thunderstorms that build through a hot afternoon. That is exactly why a two-week outlook is useful here — it shows the pattern rather than one snapshot.
It is currently 23°C in Thun with cloudy. It feels like 23°C, humidity is 56% and the wind is NNW 8 km/h.
Today (Saturday) reaches a maximum of 24°C and a minimum of 14°C, with 0 mm of rain and 12.4 hours of sunshine. Sunrise is at 06:45 and sunset at 20:15.
Tomorrow (Sunday) the maximum temperature in Thun is 27°C and the minimum 15°C. Around 0 mm of rain is expected with 11.8 hours of sunshine, and the chance of rain is 3%. The data is refreshed several times a day through Open-Meteo.
Over the coming week the average maximum temperature in Thun sits around 24°C and the average minimum around 15°C. Roughly 0 mm of rain is expected, spread across 0 days, with 0 largely sunny days.
The warmest day in the 14 day forecast for Thun is Saturday 5 Sept at 31°C. The coldest night falls on Saturday 29 Aug at 14°C. Click any day for hourly detail.
A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Thun is 6 — high enough to warrant sun protection in the middle of the day.
The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.
Forecast for Thun last updated: 29 August 2026 at 14:24. See also all Switzerland forecasts and the European weather map.
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