Weather in Winterthur - 14-day forecast

Detailed weather forecast for Winterthur, Switzerland: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Winterthur

today🌤️ 27°💧 6.6 mm

Thu🌤️ 27°💧 10.1 mm

Fri☀️ 29°💧 1.6 mm

Sat🌤️ 30°💧 0.4 mm

Sun☁️ 29°💧 3.8 mm

Mon☁️ 30°💧 1.1 mm

Tue🌧️ 29°💧 0.3 mm

Wed🌤️ 31°💧 0.4 mm

⚠️ Weather warnings - Winterthur

✅ No active weather warnings for Winterthur (region: Kreis Konstanz). The national weather service is not forecasting dangerous conditions.

14-day forecast - Winterthur

📅 Winterthur 30 & 45-day weather - long-range outlook

Next 16 days · forecast

27°

around 18° at night · days with rain: 10

Weeks 3-4 · avg for July

26°

around 15° at night · rain chance 46%

Weeks 5-7 · avg for August

25°

around 15° at night · rain chance 45%

The 30 & 45-day outlook for Winterthur: the next 16 days are a numerical forecast updated daily - on average 27° by day and 18° at night. Further out we rely on multi-year climate averages: around 26° in July, and about 25° in August. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Winterthur

Wednesday8 July 2026

🌤️27°scattered clouds

sunrise 05:36 · sunset 21:23 · night 22° · evening 24° · rain 6.63 mm · humidity 32% · wind 4 m/s · clouds 46%

Thursday9 July 2026

🌤️27°a few clouds

sunrise 05:37 · sunset 21:23 · night 18° · evening 27° · rain 10.06 mm · humidity 45% · wind 4 m/s · clouds 21%

Friday10 July 2026

☀️29°clear sky

sunrise 05:38 · sunset 21:22 · night 19° · evening 28° · rain 1.62 mm · humidity 37% · wind 4 m/s · clouds 37%

Saturday11 July 2026

🌤️30°a few clouds

sunrise 05:39 · sunset 21:22 · night 19° · evening 26° · rain 0.36 mm · humidity 33% · wind 4 m/s · clouds 14%

Sunday12 July 2026

☁️29°overcast clouds

sunrise 05:40 · sunset 21:21 · night 19° · evening 25° · rain 3.75 mm · humidity 39% · wind 3 m/s · clouds 93%

Monday13 July 2026

☁️30°broken clouds

sunrise 05:41 · sunset 21:20 · night 20° · evening 25° · rain 1.11 mm · humidity 27% · wind 2 m/s · clouds 56%

Tuesday14 July 2026

🌧️29°light rain

sunrise 05:42 · sunset 21:19 · night 16° · evening 25° · rain 0.27 mm · humidity 37% · wind 5 m/s · clouds 51%

Wednesday15 July 2026

🌤️31°scattered clouds

sunrise 05:43 · sunset 21:19 · night 19° · evening 26° · rain 0.39 mm · humidity 34% · wind 3 m/s · clouds 34%

Thursday16 July 2026

🌧️31°heavy rain

sunrise 05:44 · sunset 21:18 · night 17° · evening 18° · rain 19.95 mm · humidity 39% · wind 4 m/s · clouds 98%

Friday17 July 2026

🌧️14°moderate rain

sunrise 05:45 · sunset 21:17 · night 15° · evening 15° · rain 24 mm · humidity 97% · wind 5 m/s · clouds 100%

Saturday18 July 2026

🌧️26°light rain

sunrise 05:46 · sunset 21:16 · night 18° · evening 23° · rain 0.78 mm · humidity 42% · wind 3 m/s · clouds 2%

Sunday19 July 2026

☀️31°clear sky

sunrise 05:47 · sunset 21:15 · night 20° · evening 25° · rain 2.61 mm · humidity 31% · wind 2 m/s · clouds 10%

Monday20 July 2026

🌧️31°moderate rain

sunrise 05:48 · sunset 21:14 · night 17° · evening 18° · rain 7.71 mm · humidity 34% · wind 4 m/s · clouds 3%

Tuesday21 July 2026

🌧️14°moderate rain

sunrise 05:49 · sunset 21:13 · night 12° · evening 15° · rain 25.2 mm · humidity 98% · wind 4 m/s · clouds 100%

Wednesday22 July 2026

☁️23°broken clouds

sunrise 05:50 · sunset 21:12 · night 17° · evening 18° · rain 0.69 mm · humidity 36% · wind 6 m/s · clouds 78%

Thursday23 July 2026

☁️25°broken clouds

sunrise 05:51 · sunset 21:11 · night 21° · evening 21° · humidity 34% · wind 2 m/s · clouds 59%

☀️ UV index in Winterthur - is it safe to sunbathe?

Today the UV index in Winterthur is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

🌿 Pollen in Winterthur - info for allergy sufferers

Today grasses pollen is highest in Winterthur - about 67 grains/m³, high level. Allergy sufferers should limit time outdoors on dry, windy days and take medication as advised. Pollen levels are a CAMS model forecast and are indicative.

Air quality and smog in Winterthur

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Genewa	4.8	6.2	very good
Lozanna	4.1	5.7	very good
Zurych	4	6.1	very good
Bazylea	3.9	5.2	very good
Berno	3.7	4.9	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-07-08, 03:00).

Winterthur weather through the year

Warmest, driest months on average: April, May, June, July.

🎉 Public holidays in Winterthur - when are the long weekends?

Next long weekend in Winterthur: Christmas Day (25 December, Friday) - Friday–Sunday (3 days off).

1 AugustSaturday

Swiss National Day

falls on a weekend

25 DecemberFriday

Christmas Day

🎈 long weekend

1 JanuaryFriday 2027

New Year's Day

🎈 long weekend

6 MayThursday 2027

Ascension Day

🎈 long weekend + bridge day

1 AugustSunday 2027

Swiss National Day

falls on a weekend

25 DecemberSaturday 2027

Christmas Day

falls on a weekend

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave.

Nearby places

Zurich

FAQ - Winterthur weather

What is the weather like in Winterthur today?

Today it is about 27° during the day and 22° at night, scattered clouds.

How far ahead can I check the forecast for Winterthur?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.