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15-day forecast for Blonay - Saint-Légier

Right now

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From 27 Sep to 12 Oct in Blonay - Saint-Légier: 1 day(s) of clear skies expected, highs from 10 to 24 °C and 73.8 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.WindConfidence
Todayovercast15 °C24 °C0.0 mm10 km/hhigh
Tomorrowovercast16 °C23 °C0.0 mm10 km/hmedium
Tue 29 Sepovercast16 °C22 °C0.0 mm10 km/hmedium
Wed 30 Seplight rain16 °C19 °C0.9 mm8 km/hmedium
Thu 1 Octshowers15 °C16 °C10.1 mm6 km/hmedium
Fri 2 Octovercast14 °C19 °C0.0 mm9 km/hmedium
Sat 3 Octovercast13 °C19 °C0.0 mm5 km/hmedium
DayWeatherMinMaxPrecip.WindConfidence
Sun 4 Octshowers13 °C16 °C18.9 mm3 km/h
Mon 5 Octshowers10 °C13 °C27.3 mm8 km/h
Tue 6 Octdrizzle9 °C12 °C5.7 mm7 km/h
Wed 7 Octlight drizzle6 °C13 °C0.3 mm6 km/h
Thu 8 Octdrizzle6 °C13 °C2.1 mm5 km/h
Fri 9 Octdrizzle9 °C13 °C2.7 mm6 km/h
Sat 10 Octlight drizzle8 °C10 °C3.0 mm7 km/h
Sun 11 Octlight drizzle5 °C13 °C2.9 mm10 km/h
Mon 12 Octovercast– °C– °C– mm– km/h

Confidence index: agreement of 4 independent models (ICON, GFS, IFS, ARPEGE) on the daily high and on rain. High = highs within 2 °C and the same rain verdict; low = more than 4 °C apart or models split on rain.

And at 20, 25 or 30 days? No model seriously forecasts that far: beyond two weeks, only the local climatology gives a reliable trend.

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 Blonay - Saint-Légier: the most honest estimate beyond two weeks.

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