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: 702m

Boulogne-Billancourt Historic Citadel

Wednesday, September 30, 2026

20°C
OvercastFeels like 20°
H: 25°•L: 16°•Rain: 93%
Meteorological Synthesis

Overcast with highs near 25°C.

Precipitation expected over the coming days with variable skies.

Wind
14.8 km/h
Humidity
75%
UV Index
0 / 11
Pressure
980 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
21°
3%
19k
00:00
21°
3%
18k
01:00
20°
0%
16k
02:00
20°
0%
13k
03:00
20°
0%
14k
04:00
20°
0%
14k
05:00
20°
0%
13k
06:00
20°
3%
13k
07:00
20°
0%
12k
08:00
20°
3%
13k
09:00
21°
10%
13k
10:00
22°
15%
13k
11:00
23°
28%
14k
12:00
24°
30%
15k
13:00
25°
45%
16k
14:00
25°
38%
16k
15:00
24°
38%
13k
16:00
24°
30%
10k
17:00
23°
23%
10k
18:00
22°
30%
7k
19:00
20°
40%
3k
20:00
19°
73%
12k
21:00
17°
83%
17k
22:00
16°
93%
6k
23:00

Air Quality (AQI)

Fair
26EAQI Index

Sensitive individuals should limit prolonged outdoor exertion.

PM2.5
4.3 µg/m³
PM10
7.5 µg/m³
NO₂
1.1 µg/m³

UV Index

Max 1
0/ 11 (Moderate)

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

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

Wind

10m AGL
14.8km/h

Gusts up to 32.4 km/h.

Direction: 137°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:53
Sunset
19:39
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
1016hPa (MSL)
Surface Pressure980 hPa
Cloud Cover84%

Humidity & Moisture

RH Ratio
75%
Current Rain0 mm
24h Rain Accumulation1.3 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
Sep 30
93%
16°
25°
Tomorrow
Oct 1
83%
12°
21°
Fri
Oct 2
-
11°
23°
Sat
Oct 3
12%
12°
25°
Sun
Oct 4
23%
16°
24°
Mon
Oct 5
18%
12°
25°
Tue
Oct 6
40%
10°
25°
Wed
Oct 7
38%
15°
20°
Thu
Oct 8
28%
11°
18°
Fri
Oct 9
13%
7°
15°
Sat
Oct 10
22%
6°
16°
Sun
Oct 11
20%
9°
17°
Mon
Oct 12
33%
7°
19°
Tue
Oct 13
28%
11°
22°

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 Historic Citadel
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

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