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Weather Heiden

7-day forecast for Heiden

Today (Thursday 20 Aug) in Heiden: thunderstorms with hail, 18 to 25 °C, precipitation 36.7 mm (68 %), wind up to 18 km/h. Tomorrow: thunderstorms, 14 to 18 °C.

DayWeatherMinMaxPrecip.Wind
Todaythunderstorms with hail18 °C25 °C36.7 mm18 km/h
Tomorrowthunderstorms14 °C18 °C34.9 mm28 km/h
Sat 22 Auglight rain14 °C20 °C0.7 mm18 km/h
Sun 23 Augovercast11 °C21 °C0.0 mm10 km/h
Mon 24 Augovercast12 °C24 °C0.0 mm6 km/h
Tue 25 Augovercast16 °C24 °C0.0 mm5 km/h
Wed 26 Augovercast14 °C28 °C0.0 mm9 km/h

Forecast updated on 20.08.2026 at 15:41 (Open-Meteo model, elevation 685 m). The interactive block at the top refreshes hourly and covers 16 days.

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About Heiden

Heiden is a Swiss municipality located in the canton of Appenzell Outer Rhodes (AR), at 47.456° latitude and 9.529° longitude. The municipality is part of the eastern Alps, alpine climate with snowy winters and cool summers. Also known as Heiden, Heiden benefits from precise weather monitoring with hourly and 15-day forecasts.

685m Elevation
Foothills Zone
Snow & altitude climate In the foothills snow lies for a few weeks each winter and inversion fog is common in the valley bottoms.

Climate of Heiden

The climate in Heiden is characteristic of the eastern Alps, alpine climate with snowy winters and cool 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 Heiden and neighboring municipalities.

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

Climate of Heiden: 1991–2020 normals

In Heiden (685 m), the mean annual temperature is 8.6 °C. The warmest month is July (17.8 °C on average) and the coldest January (−0.3 °C). About 1280 mm of precipitation falls per year, peaking in August (163 mm) with a minimum in February (59 mm). The sun shines for about 1608 hours a year, mostly in July (226 h). On average there are 79 frost days and 5 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 29.5 °C and the absolute minimum −10.6 °C.

8.6 °CMean annual temperature
1280 mmPrecipitation per year
1608 hSunshine hours per year
79Frost days per year
39Summer 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
Jan−0.3 °C11.0 °C−10.6 °C6255210
Feb0.6 °C12.6 °C−9.6 °C5979180
Mar4.2 °C17.3 °C−6.5 °C78132120
Apr8.2 °C21.5 °C−3.2 °C9116830
May12.6 °C25.7 °C1.9 °C13918603
Jun16.2 °C28.6 °C6.0 °C15220109
Jul17.8 °C29.5 °C8.4 °C154226013
Aug17.3 °C28.7 °C7.7 °C163207012
Sep13.1 °C24.1 °C3.9 °C12115202
Oct9.0 °C20.6 °C−0.2 °C949910
Nov3.9 °C16.2 °C−5.6 °C835780
Dec0.8 °C13.0 °C−9.0 °C8446170
Year8.6 °C29.5 °C−10.6 °C128016087939

Source: MeteoSwiss open data (1991–2020 normals) — stations Altenrhein (4 km, 398 m), St. Gallen (10 km, 776 m), Güttingen (25 km, 440 m), adjusted to the elevation of Heiden (685 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.

Nearby cities

Check the weather of cities near Heiden:

Frequently asked questions about weather in Heiden

What is the weather in Heiden today?

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

What is the 15-day forecast for Heiden?

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

Will it rain tomorrow in Heiden?

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

What is the air quality in Heiden?

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

Are there weather alerts for Heiden?

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

At what altitude is Heiden located?

Heiden sits at around 685 m above sea level in the canton of Appenzell Outer Rhodes. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Heiden?

The warmest month in Heiden is July, averaging 17.8 °C (1991–2020 normal). The coldest is January at −0.3 °C.

How much does it rain in Heiden per year?

Heiden receives about 1280 mm of precipitation a year. The wettest month is August (163 mm), the driest February (59 mm).

When is the best time to visit Heiden?

For warmth and sunshine: July (17.8 °C on average, 226 h of sun). The coldest month is January (−0.3 °C). Check the 15-day forecast above for your dates.