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Weather in Hallwil

Aargau, 472 m · continuously updated

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Wind
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Humidity
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Rain ahead
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Sunset
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Temperature · last 4 and next 28 hours

Hallwil weather: the next 24 hours

Updated hourly.

Hallwil weather hour by hour (48 h)

Hallwil 15-day forecast

Two-week trend.

Hallwil 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 Hallwil

Neighbouring municipalities, as the crow flies.

7-day forecast for Hallwil

Today (Saturday 14 Nov) in Hallwil: fog, −1 to 6 °C, precipitation 0.0 mm (0 %), wind up to 5 km/h. Tomorrow: showers, 1 to 11 °C.

Show the 7-day table
DayWeatherMinMaxPrecip.Wind
Todayfog−1 °C6 °C0.0 mm5 km/h
Tomorrowshowers1 °C11 °C3.3 mm14 km/h
Mon 16 Novshowers8 °C10 °C6.0 mm28 km/h
Tue 17 Novlight rain7 °C14 °C4.2 mm32 km/h
Wed 18 Novthunderstorms10 °C12 °C7.8 mm31 km/h
Thu 19 Novovercast9 °C14 °C2.1 mm27 km/h
Fri 20 Novlight rain0 °C9 °C4.5 mm25 km/h

Forecast updated on 14.11.2026 at 11:18 (Open-Meteo model, elevation 472 m). The interactive block at the top refreshes hourly and covers 16 days.

No rain expected today in Hallwil. Tomorrow: rain from 04:00 to 10:00. The 15-minute detail for the next two hours is shown on demand.

Hourly weather in Hallwil

Saturday 14 Nov in Hallwil, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low −1 °C around 07:00, high 6 °C around 15:00. No rainy hour.

Show the 24-hour table
TimeWeatherTemp.Precip.Wind
00:00sunny1 °C0.0 mm2 km/h
01:00sunny0 °C0.0 mm2 km/h
02:00sunny0 °C0.0 mm2 km/h
03:00sunny0 °C0.0 mm2 km/h
04:00sunny0 °C0.0 mm2 km/h
05:00sunny0 °C0.0 mm1 km/h
06:00sunny−1 °C0.0 mm1 km/h
07:00sunny−1 °C0.0 mm1 km/h
08:00sunny−1 °C0.0 mm0 km/h
09:00sunny−1 °C0.0 mm0 km/h
10:00sunny1 °C0.0 mm3 km/h
11:00mostly sunny3 °C0.0 mm5 km/h
12:00partly cloudy4 °C0.0 mm5 km/h
13:00partly cloudy5 °C0.0 mm5 km/h
14:00mostly sunny5 °C0.0 mm4 km/h
15:00mostly sunny6 °C0.0 mm4 km/h
16:00sunny5 °C0.0 mm5 km/h
17:00sunny4 °C0.0 mm3 km/h
18:00sunny3 °C0.0 mm3 km/h
19:00sunny2 °C0.0 mm2 km/h
20:00fog1 °C0.0 mm2 km/h
21:00overcast1 °C0.0 mm2 km/h
22:00overcast2 °C0.0 mm3 km/h
23:00overcast2 °C0.0 mm2 km/h

Hourly forecast issued 14.11.2026 for Hallwil (472 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 Hallwil

Today, Saturday 14 Nov in Hallwil: fog, −1 to 6 °C, wind up to 5 km/h. No precipitation expected. That is 2.3 °C below the climate normal for November in Hallwil (4.6 °C average over 1991-2020).

Hallwil weather tomorrow

Tomorrow, Sunday 15 Nov, in Hallwil: showers, 1 to 11 °C, wind up to 14 km/h. Precipitation expected: 3.3 mm, 37 % probability.

What is the temperature in Hallwil?

Today in Hallwil (472 m): −1 to 6 °C. Tomorrow: 1 to 11 °C. Over the next 7 days, highs range from 6 to 14 °C, averaging 11 °C.

Hallwil weekend weather

This weekend in Hallwil: Saturday fog, −1 to 6 °C; Sunday showers, 1 to 11 °C.

Will it rain in Hallwil this week?

Yes: 6 days with precipitation are expected in Hallwil over the next 7 days, 27.9 mm in total. Wettest day: Wednesday 18 Nov (7.8 mm).

What is the UV index in Hallwil?

Today in Hallwil (472 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 Hallwil

The best day of the next 7 in Hallwil: Thursday 19 Nov, overcast, up to 14 °C.

Climate of Hallwil: 1991–2020 normals

In Hallwil (472 m), the mean annual temperature is 9.6 °C. The warmest month is July (18.9 °C on average) and the coldest January (0.8 °C). About 1014 mm of precipitation falls per year, peaking in July (108 mm) with a minimum in February (60 mm). The sun shines for about 1549 hours a year, mostly in July (225 h). On average there are 77 frost days and 15 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.7 °C and the absolute minimum −9.1 °C.

9.6 °CMean annual temperature
1014 mmPrecipitation per year
1549 hSunshine hours per year
77Frost days per year
57Summer 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
Jan0.8 °C11.0 °C−9.1 °C7241190
Feb1.5 °C13.3 °C−8.4 °C6074180
Mar5.4 °C18.8 °C−5.1 °C69133120
Apr9.4 °C23.5 °C−1.8 °C7216931
May13.5 °C27.5 °C2.4 °C10618305
Jun17.2 °C31.2 °C6.2 °C99205013
Jul18.9 °C32.7 °C8.6 °C108225018
Aug18.3 °C31.6 °C8.0 °C107208016
Sep14.1 °C26.5 °C4.0 °C7615105
Oct9.7 °C21.3 °C0.1 °C808610
Nov4.6 °C15.0 °C−4.1 °C774380
Dec1.5 °C11.4 °C−7.7 °C9031160
Year9.6 °C32.7 °C−9.1 °C101415497757

At what altitude is Hallwil located?

Hallwil sits at around 472 m above sea level in the canton of Aargau. 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 Hallwil?

The warmest month in Hallwil is July, averaging 18.9 °C; the coldest is January, at 0.8 °C. The annual mean is 9.6 °C (MeteoSwiss 1991–2020 normals, reference station Buchs / Aarau).

How much does it rain in Hallwil per year?

Hallwil receives about 1014 mm of precipitation a year, or 84 mm a month on average. The wettest month is July (108 mm) and the driest February (60 mm), according to the MeteoSwiss 1991–2020 normals.

How many frost days does Hallwil have?

Hallwil averages 77 frost days a year, most of them in January (19 days). Conversely, 57 summer days exceed 25 °C, 15 of them above 30 °C. Mean values from the MeteoSwiss 1991–2020 normals.

How many hours of sunshine does Hallwil get per year?

The sun shines for about 1549 hours a year in Hallwil. The sunniest month is July (225 h) and the least sunny December (31 h), according to the MeteoSwiss 1991–2020 normals.

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

In Hallwil, the monthly mean rises from 0.8 °C in January to 18.9 °C in July: a 18.1 °C gap between the coldest and the warmest month. Absolute extremes over 1991–2020 range from −9.1 °C to 32.7 °C.

When is the best time to visit Hallwil?

For warmth and sunshine: July (18.9 °C on average, 225 h of sun). To avoid rain, February is the driest month (60 mm). The coldest month is January (0.8 °C).

Source: MeteoSwiss open data (1991–2020 normals) — stations Buchs / Aarau (10 km, 387 m), Gösgen (16 km, 380 m), Würenlingen / PSI (23 km, 334 m), adjusted to the elevation of Hallwil (472 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.