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15-day forecast for Mont-Tramelan

Right now

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From 27 Sep to 12 Oct in Mont-Tramelan: 1 day(s) of clear skies expected, highs from 9 to 24 °C and 44.8 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.Wind
Todaypartly cloudy12 °C24 °C0.0 mm6 km/h
Tomorrowshowers14 °C24 °C0.1 mm9 km/h
Tue 29 Sepovercast13 °C23 °C0.0 mm9 km/h
Wed 30 Sepovercast14 °C21 °C0.9 mm7 km/h
Thu 1 Octlight rain12 °C15 °C6.3 mm5 km/h
Fri 2 Octfog10 °C16 °C0.0 mm10 km/h
Sat 3 Octfog11 °C19 °C0.0 mm6 km/h
DayWeatherMinMaxPrecip.Wind
Sun 4 Octheavy drizzle11 °C14 °C17.6 mm6 km/h
Mon 5 Octshowers8 °C13 °C10.8 mm9 km/h
Tue 6 Octlight drizzle4 °C13 °C0.9 mm8 km/h
Wed 7 Octlight drizzle4 °C12 °C1.2 mm8 km/h
Thu 8 Octlight drizzle4 °C12 °C2.7 mm7 km/h
Fri 9 Octlight drizzle6 °C11 °C0.9 mm7 km/h
Sat 10 Octlight drizzle4 °C9 °C3.0 mm13 km/h
Sun 11 Octlight drizzle5 °C13 °C0.5 mm16 km/h
Mon 12 Octovercast– °C– °C– mm– km/h

And at 20, 25 or 30 days? No model seriously forecasts that far. Climatology takes over: the October norm is 7.4 °C in Mont-Tramelan, the November norm 2.6 °C (MeteoSwiss 1991–2020, monthly means measured nearby).

Frequently asked questions

Are these 15-day forecasts reliable?

Reliability decreases with the horizon: excellent at 3 days, good up to 7, indicative beyond 10. Each passing day sharpens the rest.

Can the weather be forecast a month ahead?

No, not day by day. That is why this page completes the 16 forecast days with the MeteoSwiss monthly norms for Mont-Tramelan: the most honest estimate beyond two weeks.

meteo-ch.ch · Open-Meteo data, MeteoSwiss norms 1991–2020