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Weather in On

Wallonia · 1 767 inhabitants · Monday, September 14 · updated 00h26

Air : Bon
Light rain
17°
Light rain
Feels like 17°C
Wind
4 km/h
Gusts
16 km/h
Humidity
97 %
Pressure
1024 hPa
Clouds
90 %
Storm
No
Rise 07h11 Set 19h57 Day 12h45 UV 3 · Moderate

Detailed forecast

Trend
Night
Overcast
Overcast
17°16°
Feels like 17°
Wind ↑ SO 5 km/h
Gusts 12 km/h
Humidity 99 %
💧 0.2 mm
Morning
Overcast
Overcast
19°17°
Feels like 19°
Wind ↑ OSO 9 km/h
Gusts 20 km/h
Humidity 87 %
Afternoon
Partly cloudy
Partly cloudy
23°21°
Feels like 27°
Wind ↑ OSO 10 km/h
Gusts 23 km/h
Humidity 69 %
Evening
Partly cloudy
Partly cloudy
20°17°
Feels like 25°
Wind ↑ S 4 km/h
Gusts 11 km/h
Humidity 81 %
2h
Overcast
16°
0.1mm
SSO 4
5h
Overcast
17°
0.1mm
SO 5
8h
Overcast
17°
OSO 5
11h
Overcast
19°
OSO 9
14h
Partly cloudy
21°
OSO 10
17h
Partly cloudy
23°
O 8
20h
Mainly clear
20°
S 3
23h
Partly cloudy
17°
SE 4

Weather charts for On · 7 days

Temperatures over 7 days

▲ +1.7° above seasonal normals this week
Highs Lows Seasonal normal (1991-2020 average)
6°12°18°23°29°Auj.LunMarMerJeuVenSam19°8°Dim 13 sept. : max 18° · min 17° · normale 14,5°Lun 14 sept. : max 23° · min 16° · normale 14,4°Mar 15 sept. : max 27° · min 15° · normale 14,3°Mer 16 sept. : max 17° · min 12° · normale 14,1°Jeu 17 sept. : max 15° · min 9° · normale 14°Ven 18 sept. : max 17° · min 9° · normale 13,9°Sam 19 sept. : max 19° · min 8° · normale 13,8°

Hourly detail

DimLunMarMerJeuVenSamDim6°18°29°27°8°02
Temperature (°C) Precipitation (mm) Wind (km/h)

Air quality & pollen in On

1/6
Bon
European Air Quality Index (EAQI) · CAMS source
PM2.54µg/m³
PM107µg/m³
O₃48µg/m³
NO₂3µg/m³
SO₂0µg/m³

Pollen · dominant : Mugwort

AlderNul
BirchNul
GrassNul
MugwortFaible
OliveNul
RagweedNul

CAMS data (Copernicus) · air quality and pollen refreshed several times a day.

Rain in On: live radar and next-hour forecast

Will it rain in On? Track precipitation live on the radar and anticipate showers in the next hour — the +1 h extrapolation is based on the real movement of rain cells.

Full-screen radar · rain within the hour
Rain radar Observed, then extrapolation up to +1h (real cell movement) · drag the timeline

Moon calendar for On

Waxing crescent
9 % illuminated · 2,8 days
Rise 20h29 Set 04h49
Tue 15/9 16%
Wed 16/9 24%
Thu 17/9 34%
Fri 18/9 44%
Sat 19/9 55% First quarter
Sun 20/9 65%
Mon 21/9 75%
Tue 22/9 83%
Wed 23/9 90%
Thu 24/9 96%
Fri 25/9 99%
Sat 26/9 100% Full moon

Rise and set in local time (Europe/Brussels) · phases and illumination computed by SkiesAtlas (synodic model).

Weather history for On

What was the weather in On on a past date? Pick a day — ERA5 reanalysis data (ECMWF / Copernicus C3S), available up to one week ago.

The weather in On

Find the full weather for On, Wallonia: current conditions, forecast by time of day (morning, afternoon, evening) and a 7-day trend. Right now the sky is “light rain” with 17 °C (feels like 17 °C) and wind at 4 km/h.

Today, temperatures range from 16 °C to 23 °C, with no significant precipitation. Forecast computed by our multi-model engine SkiesAtlas (ECMWF-AIFS, NOAA GFS, DWD ICON): cloud cover calibrated on METAR observations, convective energy (CAPE) for storms.

Nearby cities

Liege 55 km 18° Namur 44 km 18° Seraing 48 km 18° Herstal 60 km 18° Chatelet 60 km 18° Ans 57 km 18° Flemalle-Haute 49 km 18° Andenne 38 km 18° Saint-Nicolas 54 km 18° Grivegnee 55 km 18° Chaudfontaine 52 km 17° Huy 39 km

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