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Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Heavy Precipitation Ahead

Significant moisture corridor approaching. Probability of localized street runoff and reduced visibility on transit corridors.

France•Île-de-France•Elev: 577m

Boulogne-Billancourt Bacino Fluviale

martedì 29 settembre 2026

21°C
OvercastFeels like 21°
H: 29°•L: 18°•Rain: 50%
Meteorological Synthesis

Overcast with highs near 29°C.

Precipitation expected over the coming days with variable skies.

Wind
18.3 km/h
Humidity
74%
UV Index
0 / 11
Pressure
991 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
24°
0%
17k
21:00
22°
0%
17k
22:00
21°
3%
18k
23:00
21°
0%
18k
00:00
21°
0%
17k
01:00
20°
0%
15k
02:00
20°
0%
16k
03:00
20°
0%
14k
04:00
20°
0%
15k
05:00
20°
3%
13k
06:00
20°
3%
12k
07:00
20°
0%
8k
08:00
20°
3%
8k
09:00
21°
13%
11k
10:00
22°
15%
13k
11:00
24°
20%
13k
12:00
25°
33%
15k
13:00
25°
53%
17k
14:00
26°
30%
18k
15:00
24°
38%
14k
16:00
23°
23%
5k
17:00
23°
20%
5k
18:00
23°
13%
3k
19:00
21°
30%
3k
20:00

Air Quality (AQI)

Fair
25EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
4.5 µg/m³
PM10
6.8 µg/m³
NO₂
1.1 µg/m³

UV Index

Max 4.9
0/ 11 (Moderate)

Low to moderate exposure. Sunglasses recommended during peak afternoon hours.

0 (Low)6 (High)11+ (Extreme)

Wind

10m AGL
18.3km/h

Gusts up to 33.8 km/h.

Direction: 137°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:52
Sunset
19:41
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1015hPa (MSL)
Surface Pressure991 hPa
Cloud Cover92%

Humidity & Moisture

RH Ratio
74%
Current Rain0 mm
24h Rain Accumulation0.3 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
29 set
50%
18°
29°
Tomorrow
30 set
90%
17°
26°
Thu
1 ott
85%
12°
21°
Fri
2 ott
-
10°
24°
Sat
3 ott
14%
11°
26°
Sun
4 ott
25%
16°
25°
Mon
5 ott
18%
11°
26°
Tue
6 ott
40%
10°
26°
Wed
7 ott
38%
15°
20°
Thu
8 ott
28%
12°
19°
Fri
9 ott
13%
7°
15°
Sat
10 ott
22%
6°
17°
Sun
11 ott
20%
9°
17°
Mon
12 ott
33%
6°
19°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

Nearby Cities & Stations in France

Regional Grid

Live Ground-Truth Observation Feed

Peer-verified reports logged by spotters and automated PWS stations across Europe

Real-time Ingestion
Log Local Ground ConditionStep 1 of 2: Select condition
Boulogne-Billancourt Bacino Fluviale
Ground Temp:°C

Observations undergo peer verification by regional spotters and enrich city telemetry.

Filter:
6 reports
S
Stefan MüllerAlpine Master SpotterAlps
Garmisch-Partenkirchen, Germany•Recent
15°C•Partly Cloudy

“Crisp morning air around Zugspitze valley station, golden sun breaking through light morning mountain mist. Zero wind, visibility > 35km.”

Ground-Truth Telemetry
C
Chloé DuboisCoastal Maritime SpotterAtlantic
Le Havre, France•Recent
14°C•Rain / Showers

“Fresh Atlantic westerly gale picking up, moderate sea swell (2.2m). Light intermittent drizzle across the harbor piers.”

Ground-Truth Telemetry
D
Dr. Alessandro RivaHigh Alpine ObserverAlps
Cortina d’Ampezzo, Italy•Recent
9°C•Clear Sky

“First seasonal frost dusting on peaks above 2,600m. Crisp alpine sky with cirrus uncinus approaching from the west.”

Ground-Truth Telemetry
M
Matteo RossiMediterranean SpotterMediterranean
Rome, Italy•Recent
22°C•Clear Sky

“Warm evening breeze across Piazza Navona. Pleasant 22°C with dry conditions and comfortable humidity around 48%.”

Ground-Truth Telemetry
E
Emre KayaBosporus Weather StationMediterranean
Istanbul, Turkey•Recent
21°C•Partly Cloudy

“Bosphorus breeze is cool and refreshing from the Black Sea. Crystal blue sky with passing white cumulus clouds at 1,200m.”

Ground-Truth Telemetry
A
Astrid LindholmFjord Atmospheric LabNordic
Bergen, Norway•Recent
11°C•Dense Fog

“Low scud clouds drifting over Mount Fløyen. Typical Atlantic marine layer with fine mist and 98% relative humidity.”

Ground-Truth Telemetry

Guide Consigliate & Articoli Correlati • Boulogne-Billancourt Bacino Fluviale

Guide approfondite di oltre 1.500 parole dedicate al patrimonio culinario, monumenti UNESCO e clima locale in tutti i 44 paesi europei.

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