What is the weather in Wittnau today?

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

What is the 15-day forecast for Wittnau?

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

Will it rain tomorrow in Wittnau?

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

What is the air quality in Wittnau?

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

Are there weather alerts for Wittnau?

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

At what altitude is Wittnau located?

Wittnau sits at around 436 m above sea level in the canton of Aargau. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Wittnau?

The warmest month in Wittnau is July, averaging 19.4 °C (1991–2020 normal). The coldest is January at 1.5 °C.

How much does it rain in Wittnau per year?

Wittnau receives about 962 mm of precipitation a year. The wettest month is August (106 mm), the driest February (52 mm).

When is the best time to visit Wittnau?

For warmth and sunshine: July (19.4 °C on average, 231 h of sun). The coldest month is January (1.5 °C). Check the 15-day forecast above for your dates.

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Weather in Wittnau

Aargau, 436 m · continuously updated

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

Temperature · last 4 and next 28 hours

Wittnau weather: the next 24 hours

Updated hourly.

Wittnau weather hour by hour (48 h)

Wittnau 15-day forecast

Two-week trend.

Wittnau 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 Wittnau

Neighbouring municipalities, as the crow flies.

Gipf-Oberfrick2 km Wegenstetten3 km Anwil3 km Kienberg4 km Rothenfluh4 km Schupfart4 km Wölflinswil5 km Frick5 km

7-day forecast for Wittnau

Today (Sunday 27 Sep) in Wittnau: partly cloudy, 11 to 28 °C, precipitation 0.0 mm (0 %), wind up to 9 km/h. Tomorrow: overcast, 15 to 29 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	11 °C	28 °C	0.0 mm	9 km/h
Tomorrow	overcast	15 °C	29 °C	0.0 mm	12 km/h
Tue 29 Sep	overcast	13 °C	27 °C	0.0 mm	10 km/h
Wed 30 Sep	overcast	16 °C	26 °C	0.0 mm	7 km/h
Thu 1 Oct	light rain	16 °C	18 °C	6.0 mm	5 km/h
Fri 2 Oct	fog	12 °C	21 °C	0.0 mm	4 km/h
Sat 3 Oct	overcast	14 °C	22 °C	0.0 mm	4 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 436 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Wittnau

Sunday 27 Sep in Wittnau, hour by hour: sunny in the morning, sunny in the afternoon, mostly sunny in the evening. Low 12 °C around 07:00, high 28 °C around 15:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	16 °C	1 km/h
01:00	sunny	16 °C	1 km/h
02:00	sunny	15 °C	1 km/h
03:00	sunny	14 °C	1 km/h
04:00	sunny	13 °C	3 km/h
05:00	sunny	13 °C	3 km/h
06:00	sunny	12 °C	2 km/h
07:00	sunny	12 °C	1 km/h
08:00	sunny	12 °C	0 km/h
09:00	sunny	14 °C	3 km/h
10:00	sunny	17 °C	5 km/h
11:00	sunny	21 °C	5 km/h
12:00	mostly sunny	24 °C	5 km/h
13:00	mostly sunny	26 °C	5 km/h
14:00	sunny	28 °C	5 km/h
15:00	sunny	28 °C	6 km/h
16:00	sunny	28 °C	8 km/h
17:00	sunny	28 °C	9 km/h
18:00	mostly sunny	26 °C	8 km/h
19:00	sunny	24 °C	5 km/h
20:00	sunny	20 °C	7 km/h
21:00	mostly sunny	19 °C	6 km/h
22:00	mostly sunny	18 °C	5 km/h
23:00	sunny	17 °C	5 km/h

Hourly forecast issued 27.09.2026 for Wittnau (436 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Wittnau weather tomorrow

Tomorrow, Monday 28 Sep, in Wittnau: overcast, 15 to 29 °C, wind up to 12 km/h. No precipitation expected.

Wittnau weekend weather

This weekend in Wittnau: Saturday overcast, 14 to 22 °C; Sunday partly cloudy, 11 to 28 °C.

Will it rain in Wittnau this week?

Yes: 1 day with precipitation is expected in Wittnau over the next 7 days, 6.0 mm in total. Wettest day: Thursday 1 Oct (6.0 mm).

The best day to go out in Wittnau

The best day of the next 7 in Wittnau: Sunday 27 Sep, partly cloudy, up to 28 °C.

The last 7 days in Wittnau

From 20 Sep to 26 Sep: 16.5 °C on average, 1.7 °C above the September normal (14.8 °C), 0 mm of precipitation (7-day normal: 18 mm). Warmest day: saturday 26 Sep (27 °C); coolest night: wednesday 23 Sep (8 °C).

Day	Min	Max
Sun 20 Sep	11 °C	25 °C
Mon 21 Sep	13 °C	21 °C
Tue 22 Sep	9 °C	22 °C
Wed 23 Sep	8 °C	23 °C
Thu 24 Sep	10 °C	22 °C
Fri 25 Sep	8 °C	23 °C
Sat 26 Sep	9 °C	27 °C

Open-Meteo analyses of the last 7 days (models and assimilated observations), MeteoSwiss 1991–2020 normals. Updated nightly.

Climate of Wittnau: 1991–2020 normals

In Wittnau (436 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.4 °C on average) and the coldest January (1.5 °C). About 962 mm of precipitation falls per year, peaking in August (106 mm) with a minimum in February (52 mm). The sun shines for about 1654 hours a year, mostly in July (231 h). On average there are 74 frost days and 8 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 32.3 °C and the absolute minimum −8.2 °C.

10.2 °CMean annual temperature

962 mmPrecipitation per year

1654 hSunshine hours per year

74Frost days per year

39Summer 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	1.5 °C	12.2 °C	−8.2 °C	60	58	19	0
Feb	2.3 °C	13.9 °C	−7.5 °C	52	83	16	0
Mar	6.1 °C	18.8 °C	−4.1 °C	61	137	10	0
Apr	9.9 °C	23.2 °C	−0.9 °C	72	170	3	0
May	13.9 °C	27.1 °C	3.4 °C	106	187	0	3
Jun	17.5 °C	30.7 °C	7.2 °C	98	210	0	8
Jul	19.4 °C	32.3 °C	9.9 °C	106	231	0	13
Aug	19.0 °C	31.2 °C	9.2 °C	106	213	0	12
Sep	14.8 °C	26.3 °C	5.5 °C	78	158	0	3
Oct	10.5 °C	21.7 °C	1.2 °C	76	99	1	0
Nov	5.4 °C	16.1 °C	−3.0 °C	72	59	8	0
Dec	2.3 °C	12.6 °C	−6.9 °C	77	49	17	0
Year	10.2 °C	32.3 °C	−8.2 °C	962	1654	74	39

Source: MeteoSwiss open data (1991–2020 normals) — stations Rünenberg (8 km, 611 m), Gösgen (13 km, 380 m), Buchs / Aarau (13 km, 387 m), adjusted to the elevation of Wittnau (436 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.