What is the weather in Grandson today?

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

What is the 15-day forecast for Grandson?

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

Will it rain tomorrow in Grandson?

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

What is the air quality in Grandson?

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

Are there weather alerts for 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 Grandson located?

Grandson sits at around 500 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 Grandson?

The warmest month in Grandson is July, averaging 18.6 °C (1991–2020 normal). The coldest is January at 2.3 °C.

How much does it rain in Grandson per year?

Grandson receives about 1019 mm of precipitation a year. The wettest month is December (98 mm), the driest February (66 mm).

When is the best time to visit Grandson?

For warmth and sunshine: July (18.6 °C on average, 249 h of sun). The coldest month is January (2.3 °C). Check the 15-day forecast above for your dates.

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Home › Vaud › Grandson

Weather in Grandson

Vaud, 500 m · continuously updated

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Wind: –
Humidity: –
Rain ahead: –
Sunset: –

Temperature · last 4 and next 28 hours

Grandson weather: the next 24 hours

Updated hourly.

Grandson weather hour by hour (48 h)

Grandson 15-day forecast

Two-week trend.

Grandson weekend weather Rain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

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Air quality

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European index, measured continuously.

UV index

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Daily maximum — protection advised from 3.

Freezing level

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Snow settles about 300 m below it.

Around Grandson

Neighbouring municipalities, as the crow flies.

Fiez2 km Giez2 km Champagne3 km Fontaines-sur-Grandson3 km Valeyres-sous-Montagny3 km Montagny-près-Yverdon3 km Yverdon-les-Bains4 km Tévenon4 km

7-day forecast for Grandson

Today (Sunday 27 Sep) in Grandson: partly cloudy, 11 to 26 °C, precipitation 0.0 mm (0 %), wind up to 7 km/h. Tomorrow: overcast, 13 to 25 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	11 °C	26 °C	0.0 mm	7 km/h
Tomorrow	overcast	13 °C	25 °C	0.0 mm	8 km/h
Tue 29 Sep	light rain	16 °C	25 °C	0.1 mm	8 km/h
Wed 30 Sep	light rain	17 °C	20 °C	2.1 mm	8 km/h
Thu 1 Oct	light rain	16 °C	18 °C	11.1 mm	6 km/h
Fri 2 Oct	overcast	15 °C	21 °C	0.0 mm	16 km/h
Sat 3 Oct	showers	14 °C	22 °C	0.6 mm	7 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 500 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected in Grandson today or tomorrow. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Grandson

Sunday 27 Sep in Grandson, hour by hour: sunny in the morning, sunny in the afternoon, partly cloudy in the evening. Low 11 °C around 07:00, high 26 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	16 °C	2 km/h
01:00	sunny	15 °C	2 km/h
02:00	sunny	14 °C	3 km/h
03:00	sunny	14 °C	3 km/h
04:00	sunny	13 °C	2 km/h
05:00	sunny	12 °C	3 km/h
06:00	sunny	12 °C	3 km/h
07:00	sunny	11 °C	2 km/h
08:00	sunny	11 °C	2 km/h
09:00	sunny	12 °C	3 km/h
10:00	sunny	15 °C	3 km/h
11:00	sunny	18 °C	3 km/h
12:00	sunny	21 °C	4 km/h
13:00	sunny	23 °C	7 km/h
14:00	sunny	24 °C	8 km/h
15:00	sunny	25 °C	8 km/h
16:00	sunny	26 °C	7 km/h
17:00	mostly sunny	26 °C	7 km/h
18:00	partly cloudy	24 °C	6 km/h
19:00	overcast	22 °C	7 km/h
20:00	mostly sunny	19 °C	8 km/h
21:00	sunny	18 °C	6 km/h
22:00	partly cloudy	18 °C	4 km/h
23:00	mostly sunny	18 °C	2 km/h

Hourly forecast issued 27.09.2026 for Grandson (500 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Grandson weather tomorrow

Tomorrow, Monday 28 Sep, in Grandson: overcast, 13 to 25 °C, wind up to 8 km/h. No precipitation expected.

Grandson weekend weather

This weekend in Grandson: Saturday showers, 14 to 22 °C; Sunday partly cloudy, 11 to 26 °C.

Will it rain in Grandson this week?

Yes: 2 days with precipitation are expected in Grandson over the next 7 days, 13.9 mm in total. Wettest day: Thursday 1 Oct (11.1 mm).

The best day to go out in Grandson

The best day of the next 7 in Grandson: Sunday 27 Sep, partly cloudy, up to 26 °C.

The last 7 days in Grandson

From 20 Sep to 26 Sep: 16.6 °C on average, 2.3 °C above the September normal (14.3 °C), 0 mm of precipitation (7-day normal: 19 mm). Warmest day: sunday 20 Sep (26 °C); coolest night: saturday 26 Sep (8 °C).

Day	Min	Max
Sun 20 Sep	11 °C	26 °C
Mon 21 Sep	10 °C	22 °C
Tue 22 Sep	14 °C	22 °C
Wed 23 Sep	10 °C	23 °C
Thu 24 Sep	9 °C	22 °C
Fri 25 Sep	9 °C	22 °C
Sat 26 Sep	8 °C	24 °C

Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.

Climate of Grandson: 1991–2020 normals

In Grandson (500 m), the mean annual temperature is 10.0 °C. The warmest month is July (18.6 °C on average) and the coldest January (2.3 °C). About 1019 mm of precipitation falls per year, peaking in December (98 mm) with a minimum in February (66 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 30.6 °C and the absolute minimum −8.8 °C.

10.0 °CMean annual temperature

1019 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.

Month	Mean T	Abs. max	Abs. min	Precip. (mm)	Sunshine (h)	Frost days	Summer days
Jan	2.3 °C	12.5 °C	−8.8 °C	80	68	20	0
Feb	2.5 °C	13.7 °C	−8.5 °C	66	93	19	0
Mar	5.5 °C	17.4 °C	−5.2 °C	69	158	15	0
Apr	9.0 °C	21.4 °C	−2.0 °C	71	182	5	1
May	13.0 °C	25.4 °C	2.6 °C	93	191	0	4
Jun	16.7 °C	28.9 °C	6.2 °C	93	232	0	13
Jul	18.6 °C	30.6 °C	8.6 °C	91	249	0	18
Aug	18.3 °C	29.7 °C	8.0 °C	96	235	0	16
Sep	14.3 °C	24.8 °C	4.7 °C	82	206	0	3
Oct	10.7 °C	21.6 °C	0.7 °C	95	131	2	0
Nov	6.0 °C	17.0 °C	−4.0 °C	85	77	11	0
Dec	3.2 °C	13.4 °C	−7.4 °C	98	43	17	0
Year	10.0 °C	30.6 °C	−8.8 °C	1019	1865	90	55

Source: MeteoSwiss open data (1991–2020 normals) — stations Bullet / La Frétaz (6 km, 1205 m), Mathod (10 km, 435 m), La Brévine (19 km, 1050 m), adjusted to the elevation of Grandson (500 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.