What is the weather in Knonau today?

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

What is the 15-day forecast for Knonau?

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

Will it rain tomorrow in Knonau?

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

What is the air quality in Knonau?

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

Are there weather alerts for Knonau?

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

At what altitude is Knonau located?

Knonau sits at around 434 m above sea level in the canton of Zurich. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Knonau?

The warmest month in Knonau is July, averaging 19.5 °C (1991–2020 normal). The coldest is January at 1.3 °C.

How much does it rain in Knonau per year?

Knonau receives about 1043 mm of precipitation a year. The wettest month is August (132 mm), the driest January (51 mm).

When is the best time to visit Knonau?

For warmth and sunshine: July (19.5 °C on average, 232 h of sun). The coldest month is January (1.3 °C). Check the 15-day forecast above for your dates.

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Home › Zurich › Knonau

Weather in Knonau

Zurich, 434 m · continuously updated

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

Temperature · last 4 and next 28 hours

Knonau weather: the next 24 hours

Updated hourly.

Knonau weather hour by hour (48 h)

Knonau 15-day forecast

Two-week trend.

Knonau 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 Knonau

Neighbouring municipalities, as the crow flies.

Mettmenstetten3 km Maschwanden3 km Cham3 km Rifferswil3 km Steinhausen3 km Kappel am Albis4 km Hünenberg5 km Baar5 km

7-day forecast for Knonau

Today (Sunday 27 Sep) in Knonau: mostly sunny, 9 to 25 °C, precipitation 0.0 mm (0 %), wind up to 5 km/h. Tomorrow: overcast, 11 to 26 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	mostly sunny	9 °C	25 °C	0.0 mm	5 km/h
Tomorrow	overcast	11 °C	26 °C	0.0 mm	6 km/h
Tue 29 Sep	overcast	13 °C	26 °C	0.0 mm	6 km/h
Wed 30 Sep	overcast	16 °C	25 °C	0.0 mm	6 km/h
Thu 1 Oct	light rain	15 °C	18 °C	1.7 mm	4 km/h
Fri 2 Oct	fog	15 °C	20 °C	0.3 mm	9 km/h
Sat 3 Oct	fog	15 °C	21 °C	0.0 mm	5 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 434 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Knonau

Sunday 27 Sep in Knonau, hour by hour: sunny in the morning, sunny in the afternoon, sunny in the evening. Low 10 °C around 08:00, high 25 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	14 °C	2 km/h
01:00	sunny	14 °C	2 km/h
02:00	sunny	13 °C	2 km/h
03:00	sunny	13 °C	1 km/h
04:00	sunny	12 °C	2 km/h
05:00	sunny	11 °C	0 km/h
06:00	sunny	11 °C	1 km/h
07:00	sunny	10 °C	0 km/h
08:00	sunny	10 °C	1 km/h
09:00	sunny	11 °C	1 km/h
10:00	sunny	13 °C	3 km/h
11:00	sunny	17 °C	3 km/h
12:00	sunny	20 °C	3 km/h
13:00	sunny	22 °C	2 km/h
14:00	mostly sunny	24 °C	2 km/h
15:00	sunny	25 °C	3 km/h
16:00	sunny	25 °C	5 km/h
17:00	sunny	25 °C	4 km/h
18:00	mostly sunny	24 °C	1 km/h
19:00	sunny	23 °C	2 km/h
20:00	sunny	19 °C	5 km/h
21:00	sunny	17 °C	5 km/h
22:00	sunny	17 °C	4 km/h
23:00	sunny	16 °C	4 km/h

Hourly forecast issued 27.09.2026 for Knonau (434 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Knonau weather tomorrow

Tomorrow, Monday 28 Sep, in Knonau: overcast, 11 to 26 °C, wind up to 6 km/h. No precipitation expected.

Knonau weekend weather

This weekend in Knonau: Saturday fog, 15 to 21 °C; Sunday mostly sunny, 9 to 25 °C.

Will it rain in Knonau this week?

Yes: 1 day with precipitation is expected in Knonau over the next 7 days, 2.0 mm in total. Wettest day: Thursday 1 Oct (1.7 mm).

The best day to go out in Knonau

The best day of the next 7 in Knonau: Sunday 27 Sep, mostly sunny, up to 25 °C.

The last 7 days in Knonau

From 20 Sep to 26 Sep: 15.4 °C on average, in line with the September normal (15.0 °C), 0 mm of precipitation (7-day normal: 20 mm). Warmest day: sunday 20 Sep (25 °C); coolest night: wednesday 23 Sep (7 °C).

Day	Min	Max
Sun 20 Sep	11 °C	25 °C
Mon 21 Sep	12 °C	20 °C
Tue 22 Sep	7 °C	20 °C
Wed 23 Sep	7 °C	21 °C
Thu 24 Sep	10 °C	22 °C
Fri 25 Sep	8 °C	21 °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 Knonau: 1991–2020 normals

In Knonau (434 m), the mean annual temperature is 10.3 °C. The warmest month is July (19.5 °C on average) and the coldest January (1.3 °C). About 1043 mm of precipitation falls per year, peaking in August (132 mm) with a minimum in January (51 mm). The sun shines for about 1694 hours a year, mostly in July (232 h). On average there are 74 frost days and 11 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.1 °C and the absolute minimum −8.4 °C.

10.3 °CMean annual temperature

1043 mmPrecipitation per year

1694 hSunshine hours per year

74Frost days per year

52Summer 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	1.3 °C	11.8 °C	−7.8 °C	51	57	20	0
Feb	2.2 °C	13.8 °C	−7.5 °C	52	87	17	0
Mar	6.1 °C	19.1 °C	−4.3 °C	54	143	10	0
Apr	10.1 °C	23.6 °C	−1.2 °C	79	180	2	1
May	14.2 °C	27.8 °C	3.3 °C	123	195	0	4
Jun	18.0 °C	31.4 °C	7.6 °C	124	212	0	12
Jul	19.5 °C	32.1 °C	9.8 °C	129	232	0	16
Aug	19.1 °C	31.6 °C	9.1 °C	132	216	0	14
Sep	15.0 °C	27.2 °C	5.2 °C	88	162	0	5
Oct	10.6 °C	22.4 °C	1.1 °C	78	107	1	0
Nov	5.1 °C	16.4 °C	−3.8 °C	63	58	8	0
Dec	2.0 °C	12.6 °C	−8.4 °C	70	45	17	0
Year	10.3 °C	32.1 °C	−8.4 °C	1043	1694	74	52

Source: MeteoSwiss open data (1991–2020 normals) — stations Cham (4 km, 443 m), Wädenswil (16 km, 485 m), Zürich / Fluntern (19 km, 604 m), adjusted to the elevation of Knonau (434 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.