A major redesign of the meteoblue Android app introduces a modern interface while preserving the key features users rely on.
Heatwaves are among Europe's most significant weather hazards, affecting millions of people as well as infrastructure, agriculture, and energy systems. But what actually causes a heatwave? Why do some persist for days or even weeks? And how do meteorologists forecast them?
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Icon
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°F
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68°
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68°
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76°
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83°
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86°
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81°
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70°
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66°
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°F
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70°
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71°
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76°
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83°
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78°
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73°
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66°
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68°
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WSW |
ENE |
W |
W |
W |
W |
WNW |
E |
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mph
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2-4
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3-3
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6-10
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11-17
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18-26
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17-30
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10-21
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2-8
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μg/m³
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Dust Levels Extremely High
Current concentration:
607 μg/m³.
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Dust Levels Extremely High
Current concentration:
568 μg/m³.
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Dust Levels Very High
Current concentration:
418 μg/m³.
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Dust Levels Very High
Current concentration:
377 μg/m³.
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Dust Levels Critically High
Current concentration:
1259 μg/m³.
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Dust Levels Critically High
Current concentration:
2048 μg/m³.
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Dust Levels Critically High
Current concentration:
1505 μg/m³.
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Dust Levels Critically High
Current concentration:
1211 μg/m³.
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in
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-
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-
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-
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-
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-
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-
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-
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0.07
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%
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5%
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0%
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0%
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0%
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5%
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5%
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25%
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40%
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in
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12.4 mi
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Until noon it is mostly cloudy. And for this afternoon even more clouds will move in. The sun will not be visible. There is only a low chance of Precipitation (around 30%). Temperatures peaking at 86 °F. With UV-Index rising to 8, sun protection is strongly recommended. Overnight into Friday light air is noticeable (1 to 4 mph). Friday morning a gentle breeze is expected (8 to 12 mph). In the afternoon blows a fresh breeze (18 to 25 mph). Gusts to 30 mph are possible. Winds blowing overnight from East and by day from West. The weather forecast for Onyar for Friday is likely to be accurate.
Pressure: 1009 hPa
Timezone: GMT+06 (UTC +06:00h)
By comparing today's temperatures to 40 years of historical data we can see whether today's forecast is unusually warm (red areas) or cold (blue areas). Coloured dots show observed actual temperatures from professional and private weather stations.
The location marker is placed on Onyar. This animation shows the precipitation radar for the selected time range, as well as a 2h forecast. Orange crosses indicate lightning. Data provided by nowcast.de (available in USA, Europe, Australia). Drizzle or light snow fall might be invisible for the radar. Precipitation intensity is colour coded, ranging from turquoise to red.
You can embed this meteogram into your own website. Customize it here.
The real-time satellite image combines visible light during daytime with infrared radiation during nighttime. At night, the image is not dark as infrared radiation can detect temperature differences. Unfortunately, low clouds and fog are difficult to distinguish from ground temperatures and thus can be almost invisible during the night. Meteosat satellite images for Europe are updated in real-time every 5 minutes. GOES-16/GOES-17 (North & South America) and Himawari (Asia) images update every 10 minutes.
Precipitation is estimated from radar and satellites. Precipitation estimates from satellites are less accurate at night than during daytime.
© 2026 meteoblue, NOAA Satellites GOES-16 and EUMETSAT. Lightning data provided by nowcast.
A major redesign of the meteoblue Android app introduces a modern interface while preserving the key features users rely on.
Heatwaves are among Europe's most significant weather hazards, affecting millions of people as well as infrastructure, agriculture, and energy systems. But what actually causes a heatwave? Why do some persist for days or even weeks? And how do meteorologists forecast them?
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