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15-day forecast for Saint-Martin (VS)

Right now

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From 27 Sep to 12 Oct in Saint-Martin (VS): 1 day(s) of clear skies expected, highs from 10 to 24 °C and 49.5 mm of precipitation in total. Day-by-day table (Open-Meteo model).

DayWeatherMinMaxPrecip.Wind
Todaypartly cloudy14 °C23 °C0.0 mm8 km/h
Tomorrowovercast15 °C24 °C0.0 mm9 km/h
Tue 29 Sepovercast13 °C22 °C0.2 mm7 km/h
Wed 30 Seplight rain12 °C18 °C0.3 mm5 km/h
Thu 1 Octlight rain11 °C14 °C7.5 mm4 km/h
Fri 2 Octovercast10 °C17 °C0.0 mm6 km/h
Sat 3 Octovercast10 °C19 °C0.0 mm11 km/h
DayWeatherMinMaxPrecip.Wind
Sun 4 Octshowers10 °C14 °C14.7 mm3 km/h
Mon 5 Octheavy drizzle9 °C15 °C6.6 mm6 km/h
Tue 6 Octlight drizzle7 °C12 °C4.2 mm6 km/h
Wed 7 Octovercast4 °C14 °C0.0 mm6 km/h
Thu 8 Octlight drizzle2 °C14 °C1.2 mm5 km/h
Fri 9 Octdrizzle7 °C15 °C3.6 mm4 km/h
Sat 10 Octdrizzle4 °C13 °C3.9 mm6 km/h
Sun 11 Octdrizzle4 °C10 °C7.3 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 7.5 °C in Saint-Martin (VS), the November norm 2.4 °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 Saint-Martin (VS): the most honest estimate beyond two weeks.

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