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15-day forecast for Collonges

Right now

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From 27 Sep to 12 Oct in Collonges: 1 day(s) of clear skies expected, highs from 11 to 20 °C and 61.6 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.Wind
Todaypartly cloudy13 °C20 °C0.0 mm17 km/h
Tomorrowovercast15 °C20 °C0.0 mm17 km/h
Tue 29 Sepovercast13 °C19 °C0.0 mm10 km/h
Wed 30 Seplight rain14 °C18 °C0.3 mm8 km/h
Thu 1 Octshowers11 °C14 °C8.4 mm7 km/h
Fri 2 Octfog10 °C16 °C0.0 mm6 km/h
Sat 3 Octovercast10 °C19 °C0.0 mm8 km/h
DayWeatherMinMaxPrecip.Wind
Sun 4 Octthunderstorms8 °C15 °C30.3 mm4 km/h
Mon 5 Octshowers8 °C13 °C9.9 mm6 km/h
Tue 6 Octlight drizzle5 °C11 °C1.8 mm5 km/h
Wed 7 Octlight drizzle2 °C13 °C0.9 mm5 km/h
Thu 8 Octdrizzle2 °C13 °C2.4 mm6 km/h
Fri 9 Octdrizzle4 °C13 °C1.8 mm6 km/h
Sat 10 Octlight drizzle4 °C12 °C1.5 mm5 km/h
Sun 11 Octdrizzle4 °C13 °C4.3 mm6 km/h
Mon 12 Octovercast– °C– °C– mm– km/h

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 Collonges: the most honest estimate beyond two weeks.

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