Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.69	2.61	2.31	2.11	2	2.19	2.31	2.5	2.5	2.31	1.89	2.39	2.31	2.19	2.19	1.69	1.5	1.19	1.5	1.5	1.81	1.81	1.89	1.69
Wind gust (m/s)	5.11	4.22	2.69	2.42	2.39	2.5	2.92	3.11	2.89	3.11	2.42	2.81	2.39	2.33	2.39	2.03	1.61	1.31	1.53	1.72	2.19	2.11	2.22	1.89
Wind direction (°)	SW 221°	SW 215°	SSW 200°	SSW 193°	S 191°	SSW 201°	SSW 202°	SSW 201°	SSW 192°	SSW 196°	SSW 210°	SSW 208°	SSW 211°	SW 227°	SW 219°	SW 221°	SSW 199°	SSW 204°	SW 222°	SSW 193°	S 186°	S 181°	SSW 192°	SSW 197°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	86	89	90	90	90	90	90	90	90	88	80	74	66	58	53	50	49	52	60	62	63	65	66	68

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	768	768	768	769	769	769	769	769	769	769	770	769	768	768	767	767	767	766	766	766	766	766	766	766

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0	0.1	0.5	1.2	2	2.2	2.3	1.7	1.4	0.6	0.2	0	0	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	3.1	3.3	4.4	4.8	4.6	4.4	4.9	5.3	5.8	6.3	6.3	5.9	5.1	4.2	3.5	3.3	3.1	2.7	3.7	4.7	5.5	6.8	7.6	6.5
PM10 (µg/m³)	4.7	4.9	5	5.4	5.1	5	5.7	7	8.7	9.9	10.5	9.9	8.8	7.9	7.4	6	5.4	6.1	8.2	9.1	10.4	11.3	11.4	9.9
Ozone (O₃) (µg/m³)	55	54	53	53	52	50	48	44	38	34	51	56	58	64	69	74	77	77	70	59	52	49	48	44
NO₂ (µg/m³)	10	8.8	7.3	6.5	6.1	6	7.2	9.9	16.3	20	12.8	8.7	6.1	4.7	3.7	3.6	3.8	4.6	8.9	13.4	15.9	20	21	16.1
SO₂ (µg/m³)	0.3	0.3	0.3	0.2	0.2	0.3	0.3	0.4	0.6	0.6	0.7	0.7	0.5	0.4	0.3	0.3	0.3	0.4	0.5	0.6	0.8	0.8	0.9	0.9
CO (µg/m³)	170	168	168	164	162	160	164	169	190	190	173	166	161	154	150	151	153	157	170	193	202	208	211	207

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Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

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5-day weather forecast Chêne-Bourg Oct 22, 2026

Forecast from 3 °C to 13 °C and precipitation

Cloud cover and precipitation probability

Wind speed and direction