Today
Sun, Jun 21
Fog
31°18°
- Rain chance
- 60%
- Precip
- 0 mm
- Max wind
- 15 km/h
Jena air quality
Thuringia, Germany · Berlin time · 50.93°, 11.59°
Current conditions · 2:45 PM local
Current conditions in Jena
30°C
Overcast
Feels like 24°C
- Humidity
- 76%
- Wind
- 8 km/h NE
- Gusts
- 23 km/h
- UV index
- 0
- Visibility
- 37.4 km
Air quality
39
Good
US AQI · European AQI 53
Air quality in Jena is currently good, with a US AQI of 39 (European AQI 53). The dominant pollutant right now is ozone. Air quality is healthy; no precautions needed. Fine particulate matter (PM2.5) measures 7.2 µg/m³. Pollen in the air today: grass (moderate) — allergy sufferers take note.
Pollutants
- PM2.5
- 7.2 µg/m³
- PM10
- 10.1 µg/m³
- Ozone (O₃)
- 119 µg/m³
- NO₂
- 1.3 µg/m³
- SO₂
- 0.9 µg/m³
- CO
- 144 µg/m³
- Dust
- 2 µg/m³
Pollen
- Grass
- 35.8 gr/m³
- Birch
- 0 gr/m³
- Alder
- 0 gr/m³
- Olive
- 0.1 gr/m³
- Mugwort
- 0.1 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
Right now in Jena, it's overcast with the temperature at 30 °C. It feels warmer than it reads, more like 32 °C. Wind is from the NE at 8 km/h, gusting to 23 km/h. Humidity stands at 49% with sea-level pressure near 1025 hPa.
At a glance
Today
31° / 18°Fog · rain likely (60%)
Tomorrow
30° / 18°Overcast
Upcoming · to Saturday
35° / 17°A steady stretch: highs near 35°, lows around 17°, and no day above a 6% rain chance through Saturday.
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Next 3 days
Expect fog today, between 18 °C and 31 °C. Rain chance peaks at 60%. Tomorrow brings overcast with a high of 30 °C and a low of 18 °C. Tuesday brings overcast with a high of 28 °C and a low of 17 °C.
Tomorrow
Mon, Jun 22
Overcast
30°18°
- Rain chance
- 13%
- Precip
- 0 mm
- Max wind
- 13 km/h
Tuesday
Tue, Jun 23
Overcast
28°17°
- Rain chance
- 0%
- Precip
- 0 mm
- Max wind
- 8 km/h
Next 48 hours
- 12 AM22°0%2 km/h
- 1 AM21°0%3 km/h
- 2 AM19°0%3 km/h
- 3 AM19°0%2 km/h
- 4 AM19°0%3 km/h
- 5 AM18°0%4 km/h
- 6 AM18°0%4 km/h
- 7 AM19°0%4 km/h
- 8 AM22°0%3 km/h
- 9 AM25°0%2 km/h
- 10 AM27°0%15 km/h
- 11 AM28°3%14 km/h
- 12 PM27°13%13 km/h
- 1 PM28°33%9 km/h
- 2 PM29°18%9 km/h
- 3 PM30°45%8 km/h
- 4 PM31°60%8 km/h
- 5 PM31°33%9 km/h
- 6 PM30°18%9 km/h
- 7 PM30°10%8 km/h
- 8 PM28°3%9 km/h
- 9 PM26°0%6 km/h
- 10 PM24°0%3 km/h
- 11 PM22°0%3 km/h
- 12 AM21°0%4 km/h
- 1 AM20°3%5 km/h
- 2 AM20°3%4 km/h
- 3 AM19°0%4 km/h
- 4 AM19°5%4 km/h
- 5 AM18°5%3 km/h
- 6 AM18°8%3 km/h
- 7 AM20°8%3 km/h
- 8 AM22°10%3 km/h
- 9 AM24°8%4 km/h
- 10 AM25°3%7 km/h
- 11 AM27°13%9 km/h
- 12 PM28°10%7 km/h
- 1 PM28°8%11 km/h
- 2 PM29°8%10 km/h
- 3 PM29°5%13 km/h
- 4 PM30°3%13 km/h
- 5 PM30°3%12 km/h
- 6 PM30°3%11 km/h
- 7 PM29°0%10 km/h
- 8 PM28°0%8 km/h
- 9 PM26°0%5 km/h
- 10 PM22°0%5 km/h
- 11 PM21°0%3 km/h
In depth
Jena starts the period under overcast, with the mercury at 30 °C and a feels-like of 32 °C. Today's forecast calls for fog, topping out near 31 °C before falling back to 18 °C overnight. Winds blow mainly from the NE around 15 km/h, with gusts up to 36 km/h. Daytime highs hold fairly steady this week, staying within 28 to 35 °C. Rain is in the picture on Saturday, with roughly 3 mm expected in total across the week. Tomorrow brings overcast with a high of 30 °C and a 13% chance of precipitation. The UV index reaches 7 today, so sun protection is sensible during the middle of the day. Sunrise comes at 04:59 and sunset at 21:31, giving 16.5 hours of daylight. Current humidity sits at 49% with pressure near 1025 hPa. Looking further out, Thursday shows partly cloudy with a high around 32 °C, while Saturday ends the week at 34 °C. Forecast details are refreshed throughout the day as new model runs arrive, so check back for the latest figures.
Sun & UV
- Sunrise
- 4:59 AM
- Sunset
- 9:31 PM
- Daylight
- 16h 32m
- Max UV
- 6.55 High
Wind
- Wind
- 8 km/h
- Gusts
- 23 km/h
- Direction
- NE (56°)
Farming weather
Soil temperatures today read surface 20.9 °C, 6 cm 23.7 °C, 18 cm 23.4 °C, 54 cm 17.5 °C. Soil moisture sits at 0-1 cm at 0.16 m³/m³, 3-9 cm at 0.17 m³/m³, 27-81 cm at 0.21 m³/m³. For wheat, the root-zone reading is below the ideal 0.2-0.35 m³/m³ band. Reference evapotranspiration totals 36 mm against only 3 mm of expected rain — a 33 mm deficit, so irrigation will be needed this week. A suitable spraying window opens around 05:00 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 35 °C (threshold 32 °C). Projected growing degree days over the next week: wheat 147, maize 109.
- Topsoil moisture
- 0.185 m³/m³
- Soil temp
- 19°C
- ET₀ today
- 5.01 mm
- Spray window
- ~5:00
- Rain (next 7d)
- 3 mm
- Wind
- 8 km/h
- Humidity
- 76%
Advisory summary
No weather alert thresholds are crossed for Jena in the current forecast (derived from forecast data, not official warnings). Conditions may still change — check back for updates.
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All data for Jena
| Variable | Value |
|---|---|
| City | Jena, Thuringia, Germany |
| Coordinates | 50.92878, 11.5899 |
| Elevation | 149 m |
| Timezone | Europe/Berlin |
| Population | 104,712 |
| Observed at (local) | 2:45 PM |
| Temperature (2 m) | 30°C |
| Apparent temperature | 24°C |
| Relative humidity (2 m) | 76% |
| Dew point (2 m) | 17°C |
| Precipitation (last hour) | 0 mm |
| Rain | 0 mm |
| Showers | 0 mm |
| Snowfall | 0 cm |
| Weather code (WMO) | 3 |
| Cloud cover | 100% |
| Surface pressure | 1008 hPa |
| Sea-level pressure | 1025 hPa |
| Wind speed (10 m) | 8 km/h |
| Wind gusts (10 m) | 23 km/h |
| Wind direction (10 m) | 56° (NE) |
| Visibility | 37.4 km |
| UV index | 0 |
| Day / night | Day |
| Today max / min | 31°C / 18°C |
| Today feels-like max / min | 33°C / 20°C |
| Today precipitation sum | 0 mm |
| Today rain sum | 0 mm |
| Today snowfall sum | 0 cm |
| Today max precip probability | 60% |
| Today max wind / gusts | 15 km/h / 36 km/h |
| Dominant wind direction | 34° (NE) |
| Sunrise / sunset | 4:59 AM / 9:31 PM |
| Daylight duration | 16h 32m |
| Sunshine duration | 14h 39m |
| Max UV index | 6.55 |
| Reference evapotranspiration (ET₀) | 5.01 mm |
| Topsoil moisture (0–1 cm) | 0.185 m³/m³ |
| Surface soil temperature | 19°C |
| US AQI | 39 |
| European AQI | 53 |
| PM2.5 | 7.2 µg/m³ |
| PM10 | 10.1 µg/m³ |
| Ozone (O₃) | 119 µg/m³ |
| Nitrogen dioxide (NO₂) | 1.3 µg/m³ |
| Sulphur dioxide (SO₂) | 0.9 µg/m³ |
| Carbon monoxide (CO) | 144 µg/m³ |
| Dust | 2 µg/m³ |
| Alder pollen | 0 gr/m³ |
| Birch pollen | 0 gr/m³ |
| Grass pollen | 35.8 gr/m³ |
| Mugwort pollen | 0.1 gr/m³ |
| Olive pollen | 0.1 gr/m³ |
| Ragweed pollen | 0 gr/m³ |
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<iframe src="https://weathertomorrow.cloud/embed/city/de/thuringia/jena" width="320" height="180" frameborder="0" title="Jena weather" loading="lazy"></iframe>Frequently asked questions
Will it rain in Jena tomorrow?
Rain is unlikely in Jena tomorrow; the precipitation chance stays around 13%.
What is the temperature in Jena today?
Today Jena sees fog with a high of 31 °C and a low of 18 °C.
How hot will it be in Jena tomorrow?
Tomorrow's high in Jena is forecast at 30 °C with overcast.
Is it windy in Jena today?
No, not especially; gusts only reach up to 36 km/h today.
What is the UV index in Jena today?
The UV index peaks at 7 today, which is high.
What time is sunrise and sunset in Jena today?
The sun rises at 04:59 and sets at 21:31 local time.
Is the air quality in Jena good today?
Air quality is good right now, with a US AQI reading of 39.