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Weather in Simplon

Valais, 1804 m · continuously updated

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Humidity
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Sunset
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Temperature · last 4 and next 28 hours

Simplon weather: the next 24 hours

Updated hourly.

Simplon weather hour by hour (48 h)

Simplon 15-day forecast

Two-week trend.

Simplon weekend weatherRain radar

Sun and golden hours

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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 Simplon

Neighbouring municipalities, as the crow flies.

7-day forecast for Simplon

Today (Saturday 14 Nov) in Simplon: snow grains, −4 to 0 °C, precipitation 0.1 mm (10 %), wind up to 9 km/h. Tomorrow: light snow, −4 to 1 °C.

Show the 7-day table
DayWeatherMinMaxPrecip.Wind
Todaysnow grains−4 °C0 °C0.1 mm9 km/h
Tomorrowlight snow−4 °C1 °C0.0 mm7 km/h
Mon 16 Novsnow showers−1 °C2 °C5.7 mm30 km/h
Tue 17 Novsnow−1 °C3 °C5.4 mm7 km/h
Wed 18 Novsnow0 °C2 °C14.7 mm10 km/h
Thu 19 Novlight snow0 °C2 °C2.7 mm16 km/h
Fri 20 Novlight snow−3 °C1 °C0.9 mm27 km/h

Forecast updated on 14.11.2026 at 11:18 (Open-Meteo model, elevation 1804 m). The interactive block at the top refreshes hourly and covers 16 days.

Today in Simplon: rain from 21:00 to 22:00, 0.1 mm in total. The rest of the day should stay dry. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Simplon

Saturday 14 Nov in Simplon, hour by hour: fog in the morning, partly cloudy in the afternoon, light snow in the evening. Low −4 °C around 08:00, high 0 °C around 11:00. Rain from 21:00 to 22:00.

Show the 24-hour table
TimeWeatherTemp.Precip.Wind
00:00sunny−2 °C0.0 mm2 km/h
01:00sunny−2 °C0.0 mm3 km/h
02:00sunny−2 °C0.0 mm1 km/h
03:00sunny−1 °C0.0 mm1 km/h
04:00sunny−3 °C0.0 mm2 km/h
05:00mostly sunny−3 °C0.0 mm3 km/h
06:00sunny−3 °C0.0 mm1 km/h
07:00fog−4 °C0.0 mm2 km/h
08:00fog−4 °C0.0 mm2 km/h
09:00fog−3 °C0.0 mm1 km/h
10:00mostly sunny0 °C0.0 mm6 km/h
11:00partly cloudy0 °C0.0 mm9 km/h
12:00partly cloudy0 °C0.0 mm9 km/h
13:00partly cloudy0 °C0.0 mm9 km/h
14:00overcast0 °C0.0 mm8 km/h
15:00overcast0 °C0.0 mm9 km/h
16:00snow grains−1 °C0.0 mm9 km/h
17:00snow grains−1 °C0.0 mm8 km/h
18:00light snow−1 °C0.0 mm8 km/h
19:00overcast−1 °C0.0 mm8 km/h
20:00light snow−1 °C0.0 mm8 km/h
21:00snow grains−2 °C0.1 mm9 km/h
22:00light snow−1 °C0.0 mm8 km/h
23:00snow grains−2 °C0.0 mm8 km/h

Hourly forecast issued 14.11.2026 for Simplon (1804 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Weather today in Simplon

Today, Saturday 14 Nov in Simplon: snow grains, −4 to 0 °C, wind up to 9 km/h. No precipitation expected. That is 1.7 °C below the climate normal for November in Simplon (−0.3 °C average over 1991-2020).

Simplon weather tomorrow

Tomorrow, Sunday 15 Nov, in Simplon: light snow, −4 to 1 °C, wind up to 7 km/h. No precipitation expected.

What is the temperature in Simplon?

Today in Simplon (1804 m): −4 to 0 °C. Tomorrow: −4 to 1 °C. Over the next 7 days, highs range from 0 to 3 °C, averaging 2 °C.

Simplon weekend weather

This weekend in Simplon: Saturday snow grains, −4 to 0 °C; Sunday light snow, −4 to 1 °C.

Will it rain in Simplon this week?

Yes: 4 days with precipitation are expected in Simplon over the next 7 days, 29.5 mm in total. Wettest day: Wednesday 18 Nov (14.7 mm).

Will it snow in Simplon?

Snowfall expected in Simplon (1804 m): Monday 16 Nov and Tuesday 17 Nov and Wednesday 18 Nov. Estimated total: 16.1 cm.

What is the UV index in Simplon?

Today in Simplon (1804 m), the UV index peaks at 1 (low) around midday. No particular protection is needed. In the mountains, radiation rises by about 10 % per 1,000 m, and snow reflects up to 80 % of it.

The best day to go out in Simplon

The best day of the next 7 in Simplon: Sunday 15 Nov, light snow, up to 1 °C.

Climate of Simplon: 1991–2020 normals

In Simplon (1804 m), the mean annual temperature is 4.2 °C. The warmest month is July (13.2 °C on average) and the coldest January (−4.3 °C). About 684 mm of precipitation falls per year, peaking in May (72 mm) with a minimum in February (39 mm). On average there are 139 frost days per year. The mean monthly maximum reaches 25.2 °C and the absolute minimum −15.1 °C.

4.2 °CMean annual temperature
684 mmPrecipitation per year
139Frost days per year
15Summer days (≥ 25 °C)
JFMAMJJASOND

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

MonthMean TAbs. maxAbs. minPrecip. (mm)Frost daysSummer days
Jan−4.3 °C6.4 °C−15.1 °C55290
Feb−3.6 °C8.7 °C−14.5 °C39250
Mar−0.0 °C12.3 °C−11.5 °C45210
Apr3.5 °C15.2 °C−8.0 °C50120
May7.5 °C19.9 °C−3.7 °C7230
Jun11.4 °C24.4 °C0.2 °C5904
Jul13.2 °C25.2 °C2.7 °C5906
Aug12.9 °C25.0 °C2.0 °C6505
Sep9.0 °C20.8 °C−1.6 °C4610
Oct5.1 °C16.8 °C−5.7 °C6260
Nov−0.3 °C11.8 °C−11.1 °C67160
Dec−3.5 °C7.0 °C−14.1 °C65260
Year4.2 °C25.2 °C−15.1 °C68413915

At what altitude is Simplon located?

Simplon sits at around 1804 m above sea level in the canton of Valais. This elevation directly affects temperatures, the rain-snow line and snow cover: on average, the temperature drops by about 0.55 °C per 100 m of altitude.

What is the warmest month in Simplon?

The warmest month in Simplon is July, averaging 13.2 °C; the coldest is January, at −4.3 °C. The annual mean is 4.2 °C (MeteoSwiss 1991–2020 normals, reference station Grächen).

How much does it rain in Simplon per year?

Simplon receives about 684 mm of precipitation a year, or 57 mm a month on average. The wettest month is May (72 mm) and the driest February (39 mm), according to the MeteoSwiss 1991–2020 normals.

How many frost days does Simplon have?

Simplon averages 139 frost days a year, most of them in January (29 days). Conversely, 15 summer days exceed 25 °C. Mean values from the MeteoSwiss 1991–2020 normals.

How big is the temperature difference between summer and winter in Simplon?

In Simplon, the monthly mean rises from −4.3 °C in January to 13.2 °C in July: a 17.5 °C gap between the coldest and the warmest month. Absolute extremes over 1991–2020 range from −15.1 °C to 25.2 °C.

Source: MeteoSwiss open data (1991–2020 normals) — stations Grächen (18 km, 1605 m), Visp (20 km, 639 m), Eggishorn (25 km, 2892 m), adjusted to the elevation of Simplon (1804 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.