WeatherEU
Official Meteorological TelemetryMeteoAlarm Advisory

MeteoAlarm Advisory: Ground Frost & Sub-Zero Risk

Overnight lows dipping below 0°C. Potential icy patches on elevated highway overpasses and bridges.

Iceland•Capital & Coast•Elev: 459m

Mosfellsbær South

niedziela, 27 września 2026

2°C
FoggyFeels like -1°
H: 2°•L: 1°•Rain: 100%
Meteorological Synthesis

Foggy with highs near 2°C.

Precipitation expected over the coming days with variable skies.

Wind
6.4 km/h
Humidity
100%
UV Index
0.1 / 11
Pressure
921 hPa

24-Hour Forecast & Meteogram

24 Hours Ahead
2°
3%
6k
17:00
2°
10%
7k
18:00
2°
10%
7k
19:00
2°
13%
5k
20:00
2°
28%
6k
21:00
2°
40%
5k
22:00
1°
55%
4k
23:00
1°
63%
3k
00:00
1°
83%
3k
01:00
1°
83%
4k
02:00
1°
85%
7k
03:00
1°
93%
9k
04:00
1°
85%
9k
05:00
1°
83%
8k
06:00
0°
70%
7k
07:00
0°
70%
5k
08:00
0°
68%
5k
09:00
0°
65%
4k
10:00
0°
58%
4k
11:00
0°
53%
4k
12:00
0°
53%
4k
13:00
1°
55%
4k
14:00
0°
50%
5k
15:00
0°
53%
5k
16:00

Air Quality (AQI)

Good
15EAQI Index

Air quality is considered satisfactory, and air pollution poses little or no risk.

PM2.5
1.4 µg/m³
PM10
1.7 µg/m³
NO₂
0.5 µg/m³

UV Index

Max 0.7
0.1/ 11 (Moderate)

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

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

Wind

10m AGL
6.4km/h

Gusts up to 15.5 km/h.

Direction: 63°
Gentle Breeze

Solar Cycle

Daylight: 12h
Sunrise
07:13
Sunset
18:57
Twilight and solar zenith calculated based on WGS84 geographic coordinate telemetry.

Pressure

Stable High
990hPa (MSL)
Surface Pressure921 hPa
Cloud Cover89%

Humidity & Moisture

RH Ratio
100%
Current Rain0 mm
24h Rain Accumulation3.6 mm

14-Day Detailed Outlook

14-Day Deterministic Model
Today
27 wrz
100%
1°
2°
Tomorrow
28 wrz
93%
0°
1°
Tue
29 wrz
79%
-1°
6°
Wed
30 wrz
54%
6°
9°
Thu
1 paź
-
5°
7°
Fri
2 paź
17%
3°
7°
Sat
3 paź
15%
1°
5°
Sun
4 paź
36%
1°
8°
Mon
5 paź
43%
5°
10°
Tue
6 paź
39%
4°
9°
Wed
7 paź
35%
7°
9°
Thu
8 paź
39%
4°
7°
Fri
9 paź
41%
3°
5°
Sat
10 paź
42%
2°
4°

Live Weather Radar — Pan-European Doppler Radar

Past -60m•Now•+120m Outlook

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
Mosfellsbær South
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

Polecane Przewodniki • Mosfellsbær South

Comprehensive, 1,500+ word guides exploring culinary heritage, historic landmarks, walking routes, and seasonal climate telemetry across all 44 European sovereign nations.

All