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Weather Fontaines-sur-Grandson

7-day forecast for Fontaines-sur-Grandson

Today (Thursday 20 Aug) in Fontaines-sur-Grandson: thunderstorms with hail, 18 to 25 °C, precipitation 14.7 mm (55 %), wind up to 28 km/h. Tomorrow: thunderstorms, 16 to 18 °C.

DayWeatherMinMaxPrecip.Wind
Todaythunderstorms with hail18 °C25 °C14.7 mm28 km/h
Tomorrowthunderstorms16 °C18 °C14.9 mm12 km/h
Sat 22 Augovercast12 °C20 °C0.0 mm11 km/h
Sun 23 Augpartly cloudy15 °C23 °C0.0 mm18 km/h
Mon 24 Augthunderstorms15 °C26 °C1.8 mm15 km/h
Tue 25 Auglight rain17 °C26 °C9.6 mm11 km/h
Wed 26 Augovercast17 °C29 °C0.0 mm6 km/h

Forecast updated on 20.08.2026 at 15:41 (Open-Meteo model, elevation 558 m). The interactive block at the top refreshes hourly and covers 16 days.

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About Fontaines-sur-Grandson

Fontaines-sur-Grandson is a Swiss municipality located in the canton of Vaud (VD), at 46.833° latitude and 6.617° longitude. The municipality is part of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Also known as Fontaines-sur-Grandson, Fontaines-sur-Grandson benefits from precise weather monitoring with hourly and 15-day forecasts.

558m Elevation
Lowland Zone
Snow & altitude climate In the lowlands winters are mild to cool with little lasting snow, sometimes persistent fog in autumn and winter.

Climate of Fontaines-sur-Grandson

The climate in Fontaines-sur-Grandson is characteristic of the Lake Geneva region, temperate climate with lake influence, mild winters and warm summers. Temperatures, precipitation and wind conditions vary throughout the year with local features linked to altitude and surrounding terrain. Our data comes from official weather stations and real-time Netatmo sensors for Fontaines-sur-Grandson and neighboring municipalities.

On this page you will find the detailed weather forecast for Fontaines-sur-Grandson: current temperature, 48-hour hourly forecast, 15-day forecast, air quality, UV index, wind, precipitation and weather alerts. Updated hourly.

Climate of Fontaines-sur-Grandson: 1991–2020 normals

In Fontaines-sur-Grandson (558 m), the mean annual temperature is 9.9 °C. The warmest month is July (18.3 °C on average) and the coldest January (2.4 °C). About 1079 mm of precipitation falls per year, peaking in December (104 mm) with a minimum in February (72 mm). The sun shines for about 1865 hours a year, mostly in July (249 h). On average there are 90 frost days and 14 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 29.6 °C and the absolute minimum −8.4 °C.

9.9 °CMean annual temperature
1079 mmPrecipitation per year
1865 hSunshine hours per year
90Frost days per year
55Summer days (≥ 25 °C)
JFMAMJJASOND

Mean monthly precipitation (mm) — bar height relative to the wettest month.

MonthMean TAbs. maxAbs. minPrecip. (mm)Sunshine (h)Frost daysSummer days
Jan2.4 °C12.5 °C−8.4 °C8768200
Feb2.4 °C13.5 °C−8.0 °C7293190
Mar5.4 °C16.6 °C−4.7 °C76158150
Apr8.7 °C20.6 °C−1.7 °C7518251
May12.6 °C24.5 °C2.8 °C9819104
Jun16.3 °C28.0 °C6.4 °C96232013
Jul18.3 °C29.6 °C9.1 °C96249018
Aug18.1 °C28.9 °C8.6 °C100235016
Sep14.2 °C24.1 °C5.2 °C8520603
Oct10.6 °C21.3 °C1.1 °C10013120
Nov6.1 °C17.1 °C−3.5 °C9177110
Dec3.3 °C13.6 °C−6.8 °C10443170
Year9.9 °C29.6 °C−8.4 °C107918659055

Source: MeteoSwiss open data (1991–2020 normals) — stations Bullet / La Frétaz (3 km, 1205 m), Mathod (11 km, 435 m), La Brévine (17 km, 1050 m), adjusted to the elevation of Fontaines-sur-Grandson (558 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.

Nearby cities

Check the weather of cities near Fontaines-sur-Grandson:

Frequently asked questions about weather in Fontaines-sur-Grandson

What is the weather in Fontaines-sur-Grandson today?

At the top of the page you will find the current temperature, precipitation and wind in Fontaines-sur-Grandson, updated in real time.

What is the 15-day forecast for Fontaines-sur-Grandson?

The "15-day forecast" section shows min/max temperatures, precipitation and wind expected for the next 15 days in Fontaines-sur-Grandson.

Will it rain tomorrow in Fontaines-sur-Grandson?

Check the 48-hour hourly forecast to see exactly when precipitation is expected in Fontaines-sur-Grandson.

What is the air quality in Fontaines-sur-Grandson?

The air quality section displays the AQI index and PM2.5, PM10 and ozone concentrations measured near Fontaines-sur-Grandson.

Are there weather alerts for Fontaines-sur-Grandson?

Weather alerts (storms, high winds, extreme temperatures) are shown as a banner at the top of the page when active.

At what altitude is Fontaines-sur-Grandson located?

Fontaines-sur-Grandson sits at around 558 m above sea level in the canton of Vaud. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Fontaines-sur-Grandson?

The warmest month in Fontaines-sur-Grandson is July, averaging 18.3 °C (1991–2020 normal). The coldest is January at 2.4 °C.

How much does it rain in Fontaines-sur-Grandson per year?

Fontaines-sur-Grandson receives about 1079 mm of precipitation a year. The wettest month is December (104 mm), the driest February (72 mm).

When is the best time to visit Fontaines-sur-Grandson?

For warmth and sunshine: July (18.3 °C on average, 249 h of sun). The coldest month is January (2.4 °C). Check the 15-day forecast above for your dates.