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Weather in Illgau

Schwyz, 1094 m · continuously updated

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Schlichenden Brünnen: 6.4 °C at Muotathal river temperature · FOEN gauge 4.6 km away · 01.11. 13h

Temperature · last 4 and next 28 hours

Illgau weather: the next 24 hours

Updated hourly.

Illgau weather hour by hour (48 h)

Illgau 15-day forecast

Two-week trend.

Illgau weekend weatherRain 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 Illgau

Neighbouring municipalities, as the crow flies.

7-day forecast for Illgau

Today (Saturday 14 Nov) in Illgau: fog, −2 to 5 °C, precipitation 0.0 mm (0 %), wind up to 10 km/h. Tomorrow: showers, 3 to 8 °C.

Show the 7-day table
DayWeatherMinMaxPrecip.Wind
Todayfog−2 °C5 °C0.0 mm10 km/h
Tomorrowshowers3 °C8 °C0.2 mm6 km/h
Mon 16 Novshowers4 °C6 °C5.5 mm8 km/h
Tue 17 Novlight rain6 °C12 °C7.1 mm16 km/h
Wed 18 Novshowers6 °C10 °C9.5 mm18 km/h
Thu 19 Novshowers5 °C10 °C4.5 mm13 km/h
Fri 20 Novshowers−2 °C5 °C14.1 mm13 km/h

Forecast updated on 14.11.2026 at 11:34 (Open-Meteo model, elevation 1094 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected today in Illgau. Tomorrow: rain from 08:00 to 11:00. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Illgau

Saturday 14 Nov in Illgau, hour by hour: sunny in the morning, sunny in the afternoon, partly cloudy in the evening. Low −2 °C around 00:00, high 5 °C around 14:00. No rainy hour.

Show the 24-hour table
TimeWeatherTemp.Precip.Wind
00:00fog−2 °C0.0 mm1 km/h
01:00fog−1 °C0.0 mm1 km/h
02:00sunny−1 °C0.0 mm0 km/h
03:00sunny−1 °C0.0 mm3 km/h
04:00sunny−1 °C0.0 mm5 km/h
05:00sunny0 °C0.0 mm5 km/h
06:00sunny0 °C0.0 mm5 km/h
07:00sunny0 °C0.0 mm5 km/h
08:00sunny0 °C0.0 mm3 km/h
09:00sunny1 °C0.0 mm1 km/h
10:00sunny2 °C0.0 mm4 km/h
11:00sunny2 °C0.0 mm2 km/h
12:00mostly sunny3 °C0.0 mm2 km/h
13:00mostly sunny4 °C0.0 mm2 km/h
14:00mostly sunny5 °C0.0 mm2 km/h
15:00sunny5 °C0.0 mm2 km/h
16:00sunny5 °C0.0 mm1 km/h
17:00sunny5 °C0.0 mm7 km/h
18:00sunny5 °C0.0 mm9 km/h
19:00partly cloudy5 °C0.0 mm10 km/h
20:00partly cloudy5 °C0.0 mm8 km/h
21:00partly cloudy4 °C0.0 mm7 km/h
22:00partly cloudy4 °C0.0 mm5 km/h
23:00overcast4 °C0.0 mm4 km/h

Hourly forecast issued 14.11.2026 for Illgau (1094 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 Illgau

Today, Saturday 14 Nov in Illgau: fog, −2 to 5 °C, wind up to 10 km/h. No precipitation expected. A day in line with the climate normal for November in Illgau (2.0 °C average over 1991-2020).

Illgau weather tomorrow

Tomorrow, Sunday 15 Nov, in Illgau: showers, 3 to 8 °C, wind up to 6 km/h. Precipitation expected: 0.2 mm, 16 % probability.

What is the temperature in Illgau?

Today in Illgau (1094 m): −2 to 5 °C. Tomorrow: 3 to 8 °C. Over the next 7 days, highs range from 5 to 12 °C, averaging 8 °C.

Illgau weekend weather

This weekend in Illgau: Saturday fog, −2 to 5 °C; Sunday showers, 3 to 8 °C.

Will it rain in Illgau this week?

Yes: 5 days with precipitation are expected in Illgau over the next 7 days, 40.8 mm in total. Wettest day: Friday 20 Nov (14.1 mm).

Will it snow in Illgau?

Snowfall expected in Illgau (1094 m): Friday 20 Nov. Estimated total: 6.3 cm.

What is the UV index in Illgau?

Today in Illgau (1094 m), the UV index peaks at 2 (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 Illgau

The best day of the next 7 in Illgau: Saturday 14 Nov, fog, up to 5 °C.

Climate of Illgau: 1991–2020 normals

In Illgau (1094 m), the mean annual temperature is 6.5 °C. The warmest month is July (15.4 °C on average) and the coldest January (−2.2 °C). About 1571 mm of precipitation falls per year, peaking in August (190 mm) with a minimum in February (87 mm). On average there are 123 frost days and 1 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 27.7 °C and the absolute minimum −13.2 °C.

6.5 °CMean annual temperature
1571 mmPrecipitation per year
123Frost days per year
16Summer days (≥ 25 °C)
JFMAMJJASOND

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

MonthMean TAbs. maxAbs. minPrecip. (mm)Frost daysSummer days
Jan−2.2 °C9.6 °C−13.2 °C92270
Feb−1.6 °C10.4 °C−12.9 °C87240
Mar2.1 °C15.1 °C−9.2 °C105190
Apr6.1 °C19.3 °C−5.1 °C10890
May10.2 °C23.6 °C−0.3 °C16010
Jun13.7 °C26.8 °C3.5 °C17704
Jul15.4 °C27.7 °C5.9 °C18306
Aug15.1 °C26.9 °C5.4 °C19006
Sep11.1 °C22.6 °C1.5 °C13600
Oct7.0 °C19.4 °C−2.8 °C11030
Nov2.0 °C15.0 °C−8.0 °C108140
Dec−1.4 °C10.8 °C−11.9 °C116250
Year6.5 °C27.7 °C−13.2 °C157112316

At what altitude is Illgau located?

Illgau sits at around 1094 m above sea level in the canton of Schwyz. 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 Illgau?

The warmest month in Illgau is July, averaging 15.4 °C; the coldest is January, at −2.2 °C. The annual mean is 6.5 °C (MeteoSwiss 1991–2020 normals, reference station Altdorf).

How much does it rain in Illgau per year?

Illgau receives about 1571 mm of precipitation a year, or 131 mm a month on average. The wettest month is August (190 mm) and the driest February (87 mm), according to the MeteoSwiss 1991–2020 normals.

How many frost days does Illgau have?

Illgau averages 123 frost days a year, most of them in January (27 days). Conversely, 16 summer days exceed 25 °C, 1 of them above 30 °C. Mean values from the MeteoSwiss 1991–2020 normals.

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

In Illgau, the monthly mean rises from −2.2 °C in January to 15.4 °C in July: a 17.6 °C gap between the coldest and the warmest month. Absolute extremes over 1991–2020 range from −13.2 °C to 27.7 °C.

Source: MeteoSwiss open data (1991–2020 normals) — stations Altdorf (15 km, 438 m), Einsiedeln (15 km, 911 m), Wädenswil (25 km, 485 m), adjusted to the elevation of Illgau (1094 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.