What is the weather in Winznau today?

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

What is the 15-day forecast for Winznau?

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

Will it rain tomorrow in Winznau?

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

What is the air quality in Winznau?

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

Are there weather alerts for Winznau?

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

At what altitude is Winznau located?

Winznau sits at around 437 m above sea level in the canton of Solothurn. This elevation directly affects the temperatures, rain-snow line and snow cover shown in the forecasts.

What is the warmest month in Winznau?

The warmest month in Winznau is July, averaging 19.1 °C (1991–2020 normal). The coldest is January at 1.2 °C.

How much does it rain in Winznau per year?

Winznau receives about 991 mm of precipitation a year. The wettest month is August (109 mm), the driest February (57 mm).

When is the best time to visit Winznau?

For warmth and sunshine: July (19.1 °C on average, 231 h of sun). The coldest month is January (1.2 °C). Check the 15-day forecast above for your dates.

meteo-ch.ch Search a municipality…

Home › Solothurn › Winznau

Weather in Winznau

Solothurn, 437 m · continuously updated

–^°C

– –

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

Dünnern: 14.8 °C at Olten, Hammermühle river temperature · FOEN gauge 3.4 km away · 27.09. 00h

Temperature · last 4 and next 28 hours

Winznau weather: the next 24 hours

Updated hourly.

Winznau weather hour by hour (48 h)

Winznau 15-day forecast

Two-week trend.

Winznau weekend weather Rain radar

Sun and golden hours

Sunrise –, golden light until –

Sunset –, golden light from –

–

Air quality

–

European index, measured continuously.

UV index

–

Daily maximum — protection advised from 3.

Freezing level

–

Snow settles about 300 m below it.

Around Winznau

Neighbouring municipalities, as the crow flies.

Obergösgen2 km Trimbach2 km Dulliken3 km Lostorf3 km Aarburg3 km Wisen (SO)4 km Olten4 km Starrkirch-Wil4 km

7-day forecast for Winznau

Today (Sunday 27 Sep) in Winznau: partly cloudy, 8 to 27 °C, precipitation 0.0 mm (0 %), wind up to 11 km/h. Tomorrow: overcast, 11 to 27 °C.

Day	Weather	Min	Max	Precip.	Wind
Today	partly cloudy	8 °C	27 °C	0.0 mm	11 km/h
Tomorrow	overcast	11 °C	27 °C	0.0 mm	7 km/h
Tue 29 Sep	overcast	12 °C	26 °C	0.0 mm	5 km/h
Wed 30 Sep	overcast	15 °C	24 °C	0.0 mm	5 km/h
Thu 1 Oct	light rain	15 °C	19 °C	5.7 mm	5 km/h
Fri 2 Oct	fog	14 °C	20 °C	0.0 mm	7 km/h
Sat 3 Oct	fog	13 °C	22 °C	0.0 mm	5 km/h

Forecast updated on 27.09.2026 at 04:37 (Open-Meteo model, elevation 437 m). The interactive block at the top refreshes hourly and covers 16 days.

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

Hourly weather in Winznau

Sunday 27 Sep in Winznau, hour by hour: sunny in the morning, sunny in the afternoon, mostly sunny in the evening. Low 9 °C around 07:00, high 27 °C around 16:00. No rainy hour.

Show the 24-hour table

Time	Weather	Temp.	Wind
00:00	sunny	13 °C	2 km/h
01:00	sunny	12 °C	2 km/h
02:00	sunny	12 °C	3 km/h
03:00	sunny	10 °C	6 km/h
04:00	sunny	9 °C	6 km/h
05:00	sunny	9 °C	5 km/h
06:00	sunny	9 °C	5 km/h
07:00	sunny	9 °C	6 km/h
08:00	sunny	9 °C	5 km/h
09:00	sunny	12 °C	4 km/h
10:00	sunny	15 °C	4 km/h
11:00	sunny	18 °C	5 km/h
12:00	sunny	21 °C	6 km/h
13:00	sunny	24 °C	8 km/h
14:00	sunny	26 °C	9 km/h
15:00	sunny	27 °C	9 km/h
16:00	sunny	27 °C	9 km/h
17:00	sunny	26 °C	8 km/h
18:00	mostly sunny	26 °C	6 km/h
19:00	sunny	22 °C	4 km/h
20:00	sunny	18 °C	5 km/h
21:00	mostly sunny	17 °C	4 km/h
22:00	mostly sunny	16 °C	4 km/h
23:00	sunny	15 °C	5 km/h

Hourly forecast issued 27.09.2026 for Winznau (437 m), Swiss local time, Open-Meteo model. The interactive block at the top of the page covers 16 days and refreshes every hour.

Winznau weather tomorrow

Tomorrow, Monday 28 Sep, in Winznau: overcast, 11 to 27 °C, wind up to 7 km/h. No precipitation expected.

Winznau weekend weather

This weekend in Winznau: Saturday fog, 13 to 22 °C; Sunday partly cloudy, 8 to 27 °C.

Will it rain in Winznau this week?

Yes: 1 day with precipitation is expected in Winznau over the next 7 days, 5.7 mm in total. Wettest day: Thursday 1 Oct (5.7 mm).

The best day to go out in Winznau

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

The last 7 days in Winznau

From 20 Sep to 26 Sep: 15.5 °C on average, 1.1 °C above the September normal (14.4 °C), 0 mm of precipitation (7-day normal: 18 mm). Warmest day: sunday 20 Sep (26 °C); coolest night: wednesday 23 Sep (6 °C).

Day	Min	Max
Sun 20 Sep	10 °C	26 °C
Mon 21 Sep	13 °C	21 °C
Tue 22 Sep	7 °C	21 °C
Wed 23 Sep	6 °C	22 °C
Thu 24 Sep	8 °C	22 °C
Fri 25 Sep	7 °C	22 °C
Sat 26 Sep	7 °C	26 °C

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

Climate of Winznau: 1991–2020 normals

In Winznau (437 m), the mean annual temperature is 9.9 °C. The warmest month is July (19.1 °C on average) and the coldest January (1.2 °C). About 991 mm of precipitation falls per year, peaking in August (109 mm) with a minimum in February (57 mm). The sun shines for about 1647 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 32.6 °C and the absolute minimum −8.4 °C.

9.9 °CMean annual temperature

991 mmPrecipitation per year

1647 hSunshine hours per year

74Frost days per year

41Summer 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	1.2 °C	11.4 °C	−8.4 °C	67	57	19	0
Feb	1.9 °C	13.5 °C	−7.9 °C	57	83	17	0
Mar	5.8 °C	18.9 °C	−4.7 °C	65	136	10	0
Apr	9.5 °C	23.3 °C	−1.4 °C	74	170	3	0
May	13.6 °C	27.3 °C	2.8 °C	103	187	0	3
Jun	17.3 °C	31.0 °C	6.6 °C	99	210	0	9
Jul	19.1 °C	32.6 °C	9.3 °C	108	231	0	14
Aug	18.6 °C	31.4 °C	8.7 °C	109	213	0	12
Sep	14.4 °C	26.4 °C	4.8 °C	76	157	0	3
Oct	10.0 °C	21.5 °C	0.8 °C	77	98	1	0
Nov	5.0 °C	15.4 °C	−3.5 °C	74	58	8	0
Dec	1.9 °C	11.8 °C	−7.0 °C	84	47	17	0
Year	9.9 °C	32.6 °C	−8.4 °C	991	1647	74	41

Source: MeteoSwiss open data (1991–2020 normals) — stations Gösgen (4 km, 380 m), Rünenberg (8 km, 611 m), Buchs / Aarau (12 km, 387 m), adjusted to the elevation of Winznau (437 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.