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15-day forecast for Val-d'Illiez

Right now

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From 27 Sep to 12 Oct in Val-d'Illiez: 1 day(s) of clear skies expected, highs from 11 to 22 °C and 84.0 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.Wind
Todaypartly cloudy13 °C22 °C0.0 mm9 km/h
Tomorrowovercast13 °C22 °C0.0 mm9 km/h
Tue 29 Sepshowers14 °C19 °C0.4 mm6 km/h
Wed 30 Seplight rain14 °C18 °C1.2 mm7 km/h
Thu 1 Octthunderstorms13 °C15 °C9.6 mm4 km/h
Fri 2 Octfog12 °C17 °C0.3 mm8 km/h
Sat 3 Octshowers11 °C18 °C0.6 mm9 km/h
DayWeatherMinMaxPrecip.Wind
Sun 4 Octshowers10 °C16 °C28.2 mm6 km/h
Mon 5 Octshowers9 °C13 °C24.0 mm5 km/h
Tue 6 Octdrizzle6 °C11 °C11.4 mm7 km/h
Wed 7 Octlight drizzle3 °C13 °C0.6 mm8 km/h
Thu 8 Octlight drizzle3 °C14 °C1.8 mm8 km/h
Fri 9 Octlight drizzle6 °C14 °C1.2 mm7 km/h
Sat 10 Octlight drizzle5 °C12 °C2.4 mm8 km/h
Sun 11 Octlight drizzle6 °C15 °C2.2 mm10 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 8.7 °C in Val-d'Illiez, the November norm 3.4 °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 Val-d'Illiez: the most honest estimate beyond two weeks.

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