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15-day forecast for Rennaz

Right now

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From 27 Sep to 12 Oct in Rennaz: 1 day(s) of clear skies expected, highs from 14 to 25 °C and 103.0 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.Wind
Todaypartly cloudy13 °C25 °C0.0 mm10 km/h
Tomorrowovercast12 °C24 °C0.0 mm12 km/h
Tue 29 Seplight rain20 °C23 °C0.3 mm8 km/h
Wed 30 Seplight rain18 °C22 °C1.2 mm7 km/h
Thu 1 Octshowers17 °C19 °C9.3 mm5 km/h
Fri 2 Octovercast18 °C22 °C0.0 mm8 km/h
Sat 3 Octovercast16 °C22 °C0.0 mm7 km/h
DayWeatherMinMaxPrecip.Wind
Sun 4 Octshowers15 °C19 °C27.0 mm5 km/h
Mon 5 Octshowers13 °C17 °C35.1 mm6 km/h
Tue 6 Octshowers11 °C15 °C15.3 mm5 km/h
Wed 7 Octlight drizzle8 °C16 °C1.2 mm8 km/h
Thu 8 Octlight drizzle8 °C17 °C1.8 mm8 km/h
Fri 9 Octlight drizzle11 °C17 °C1.8 mm6 km/h
Sat 10 Octdrizzle10 °C14 °C8.4 mm7 km/h
Sun 11 Octlight drizzle10 °C18 °C1.6 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 11.0 °C in Rennaz, the November norm 5.9 °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 Rennaz: the most honest estimate beyond two weeks.

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