Today
Sun, Jun 21
Slight rain showers
35°15°
- Rain chance
- 8%
- Precip
- 0 mm
- Max wind
- 9 km/h
Olten air quality
Solothurn, Switzerland · Zurich time · 47.35°, 7.90°
Extreme heat Thursday: feels-like temperatures up to 40 °C.
Extreme heat Thursday: feels-like temperatures up to 40 °C.
Derived advisory — not an official warning
Current conditions · 3:00 PM local
Current conditions in Olten
35°C
Partly cloudy
Feels like 37°C
- Humidity
- 25%
- Wind
- 7 km/h SE
- Gusts
- 14 km/h
- UV index
- 6.55
- Visibility
- 49.6 km
Air quality
39
Good
US AQI · European AQI 43
Air quality in Olten is currently good, with a US AQI of 39 (European AQI 43). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 9.1 µg/m³. Pollen in the air today: grass (moderate) — allergy sufferers take note.
Pollutants
- PM2.5
- 9.1 µg/m³
- PM10
- 16.4 µg/m³
- Ozone (O₃)
- 105 µg/m³
- NO₂
- 0.9 µg/m³
- SO₂
- 0.2 µg/m³
- CO
- 124 µg/m³
- Dust
- 10 µg/m³
Pollen
- Grass
- 36.8 gr/m³
- Birch
- 0.1 gr/m³
- Alder
- 0 gr/m³
- Olive
- 0.2 gr/m³
- Mugwort
- 0 gr/m³
- Ragweed
- 0 gr/m³
AQI computed from the CAMS air quality model via Open-Meteo. Bands follow the US EPA scale.
Right now
Conditions in Olten at the moment: partly cloudy, 35 °C. It feels close to the actual reading at 36 °C. Wind is from the SE at 6 km/h. Humidity stands at 25% with sea-level pressure near 1023 hPa.
At a glance
Today
35° / 15°Slight rain showers
Tomorrow
36° / 16°Overcast
Upcoming · to Saturday
37° / 17°A steady stretch: highs near 37°, lows around 17°, and no day above a 19% rain chance through Saturday.
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Next 3 days
Today looks like slight rain showers; temperatures run from 15 °C up to 35 °C. Tomorrow brings overcast with a high of 36 °C and a low of 16 °C. Tuesday brings overcast with a high of 34 °C and a low of 17 °C.
Tomorrow
Mon, Jun 22
Overcast
36°16°
- Rain chance
- 3%
- Precip
- 0 mm
- Max wind
- 11 km/h
Tuesday
Tue, Jun 23
Overcast
34°17°
- Rain chance
- 6%
- Precip
- 0.1 mm
- Max wind
- 12 km/h
Next 48 hours
- 12 AM19°0%4 km/h
- 1 AM18°0%3 km/h
- 2 AM18°0%1 km/h
- 3 AM17°0%5 km/h
- 4 AM17°0%2 km/h
- 5 AM15°0%1 km/h
- 6 AM15°0%3 km/h
- 7 AM16°0%2 km/h
- 8 AM19°0%3 km/h
- 9 AM22°0%4 km/h
- 10 AM24°0%4 km/h
- 11 AM28°0%6 km/h
- 12 PM31°0%7 km/h
- 1 PM33°0%4 km/h
- 2 PM34°0%4 km/h
- 3 PM35°0%7 km/h
- 4 PM35°0%9 km/h
- 5 PM35°8%3 km/h
- 6 PM34°3%5 km/h
- 7 PM33°3%7 km/h
- 8 PM30°0%8 km/h
- 9 PM27°0%5 km/h
- 10 PM24°0%6 km/h
- 11 PM23°0%3 km/h
- 12 AM22°0%5 km/h
- 1 AM22°0%3 km/h
- 2 AM20°0%3 km/h
- 3 AM20°0%3 km/h
- 4 AM19°0%3 km/h
- 5 AM16°0%4 km/h
- 6 AM17°0%1 km/h
- 7 AM17°0%2 km/h
- 8 AM21°0%2 km/h
- 9 AM23°0%1 km/h
- 10 AM27°0%0 km/h
- 11 AM29°0%2 km/h
- 12 PM32°0%2 km/h
- 1 PM34°0%4 km/h
- 2 PM35°0%6 km/h
- 3 PM35°0%5 km/h
- 4 PM36°0%9 km/h
- 5 PM35°0%7 km/h
- 6 PM35°0%6 km/h
- 7 PM33°0%10 km/h
- 8 PM31°3%11 km/h
- 9 PM28°0%6 km/h
- 10 PM25°0%6 km/h
- 11 PM24°0%5 km/h
In depth
Olten starts the period under partly cloudy, with the mercury at 35 °C and a feels-like of 36 °C. Today's forecast calls for slight rain showers, topping out near 35 °C before falling back to 15 °C overnight. Winds blow mainly from the SSE around 9 km/h, with gusts up to 23 km/h. Daytime highs hold fairly steady this week, staying within 33 to 37 °C. Rain is in the picture on Friday, Saturday, with roughly 3 mm expected in total across the week. Tomorrow brings overcast with a high of 36 °C and a 3% chance of precipitation. The UV index reaches 7 today, so sun protection is sensible during the middle of the day. Sunrise comes at 05:31 and sunset at 21:28, giving 15.9 hours of daylight. Current humidity sits at 25% with pressure near 1023 hPa. Looking further out, Thursday shows overcast with a high around 37 °C, while Saturday ends the week at 33 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Sun & UV
- Sunrise
- 5:31 AM
- Sunset
- 9:28 PM
- Daylight
- 15h 57m
- Max UV
- 6.9 High
Wind
- Wind
- 7 km/h
- Gusts
- 14 km/h
- Direction
- SE (146°)
Farming weather
Soil temperatures today read surface 19.9 °C, 6 cm 23.5 °C, 18 cm 23.2 °C, 54 cm 17.6 °C. Soil moisture sits at 0-1 cm at 0.1 m³/m³, 3-9 cm at 0.12 m³/m³, 27-81 cm at 0.2 m³/m³. For wheat, the root-zone reading is below the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 41 mm against only 3 mm of expected rain — a 38 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 06:00 on 2026-06-21, with winds at or below 15 km/h and no rain expected. Heat stress is likely for wheat with highs reaching 37 °C (threshold 32 °C). Heat stress is likely for maize with highs reaching 37 °C (threshold 35 °C). Projected growing degree days over the next week: wheat 157, maize 118.
- Topsoil moisture
- 0.099 m³/m³
- Soil temp
- 17°C
- ET₀ today
- 5.85 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 2.8 mm
- Wind
- 7 km/h
- Humidity
- 25%
Advisory summary
Weather alerts for Olten (derived from forecast data, not official warnings): Extreme heat Thursday: feels-like temperatures up to 40 °C.
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All data for Olten
| Variable | Value |
|---|---|
| City | Olten, Solothurn, Switzerland |
| Coordinates | 47.34999, 7.90329 |
| Elevation | 406 m |
| Timezone | Europe/Zurich |
| Population | 18,362 |
| Observed at (local) | 3:00 PM |
| Temperature (2 m) | 35°C |
| Apparent temperature | 37°C |
| Relative humidity (2 m) | 25% |
| Dew point (2 m) | 12°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 2 |
| Cloud cover | 30% |
| Surface pressure | 978 hPa |
| Sea-level pressure | 1023 hPa |
| Wind speed (10 m) | 7 km/h |
| Wind gusts (10 m) | 14 km/h |
| Wind direction (10 m) | 146° (SE) |
| Visibility | 49.6 km |
| UV index | 6.55 |
| Day / night | Day |
| Today max / min | 35°C / 15°C |
| Today feels-like max / min | 37°C / 16°C |
| Today precipitation sum | 0 mm |
| Today rain sum | 0 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 8% |
| Today max wind / gusts | 9 km/h / 23 km/h |
| Dominant wind direction | 159° (SSE) |
| Sunrise / sunset | 5:31 AM / 9:28 PM |
| Daylight duration | 15h 57m |
| Sunshine duration | 12h 52m |
| Max UV index | 6.9 |
| Reference evapotranspiration (ET₀) | 5.85 mm |
| Topsoil moisture (0–1 cm) | 0.099 m³/m³ |
| Surface soil temperature | 17°C |
| US AQI | 39 |
| European AQI | 43 |
| PM2.5 | 9.1 µg/m³ |
| PM10 | 16.4 µg/m³ |
| Ozone (O₃) | 105 µg/m³ |
| Nitrogen dioxide (NO₂) | 0.9 µg/m³ |
| Sulphur dioxide (SO₂) | 0.2 µg/m³ |
| Carbon monoxide (CO) | 124 µg/m³ |
| Dust | 10 µg/m³ |
| Alder pollen | 0 gr/m³ |
| Birch pollen | 0.1 gr/m³ |
| Grass pollen | 36.8 gr/m³ |
| Mugwort pollen | 0 gr/m³ |
| Olive pollen | 0.2 gr/m³ |
| Ragweed pollen | 0 gr/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/ch/solothurn/olten" width="320" height="180" frameborder="0" title="Olten weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Olten tomorrow?
Rain is unlikely in Olten tomorrow; the precipitation chance stays around 3%.
What is the temperature in Olten today?
Today Olten sees slight rain showers with a high of 35 °C and a low of 15 °C.
How hot will it be in Olten tomorrow?
Tomorrow's high in Olten is forecast at 36 °C with overcast.
Is it windy in Olten today?
No, not especially; gusts only reach up to 23 km/h today.
What is the UV index in Olten today?
The UV index peaks at 7 today, which is high.
What time is sunrise and sunset in Olten today?
The sun rises at 05:31 and sets at 21:28 local time.
Is the air quality in Olten good today?
Air quality is good right now, with a US AQI reading of 39.