11-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Drizzle
9°
Feels like 8°
Wind↑ S 7 km/h
Humidity 76 %
💧 0.3 mm
Evening
Light rain
12°
Feels like 12°
Wind↑ SSW 10 km/h
Gusts20 km/h
Humidity 92 %
💧 2.2 mm
12-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Rain
13°
Feels like 13°
Wind↑ SSW 18 km/h
Gusts44 km/h
Humidity 91 %
💧 5.8 mm
Evening
Drizzle
5°
Feels like 3°
Wind↑ NW 9 km/h
Gusts19 km/h
Humidity 89 %
💧 0.7 mm
13-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Light rain
3°
Feels like -2°
Wind↑ NNW 24 km/h
Gusts46 km/h
Humidity 97 %
💧 1.8 mm
Evening
Overcast
3°
Feels like -1°
Wind↑ N 17 km/h
Gusts29 km/h
Humidity 87 %
💧 0.1 mm
14-day outlook — past day 10 this is an outlook from the end of the GFS run: expect differences of several degrees.
Morning
Clear sky
-1°
Feels like -1°
Wind↑ WNW 3 km/h
Humidity 94 %
Saint-Étienne forecast in charts · next 7 days
The week ahead: highs and lows
▼ This week runs -2.7° cooler than usual
Highs Lows Usual for the season (1991–2020 average)
Hourly detail
Temperature (°C) Rain (mm) Wind (km/h)
Saint-Étienne climate: what a normal year looks like
From 15 h 40 min of daylight in late June to 8 h 42 min in late December.
Nights typically freeze in January and February, the coldest averaging −1 °C in January.
The hottest stretch is August, when afternoons average 25 °C; the coldest is January, when nights average −1 °C.
There is no real dry season: monthly rainfall stays between 54 mm and 101 mm on average.
Forecast highs for the coming week average 9 °C, 6 °C cooler than a normal October (15 °C).
30-year averages (1991–2020)
Month
Typical high
Typical low
Rainfall
Jan
5 °C
−1 °C
69 mm
Feb
7 °C
0 °C
54 mm
Mar
10 °C
2 °C
60 mm
Apr
14 °C
5 °C
90 mm
May
18 °C
8 °C
101 mm
Jun
22 °C
12 °C
89 mm
Jul
24 °C
14 °C
82 mm
Aug
25 °C
14 °C
79 mm
Sep
20 °C
10 °C
92 mm
Oct
15 °C
7 °C
99 mm
Nov
9 °C
3 °C
98 mm
Dec
6 °C
0 °C
70 mm
Whole year
15 °C
6 °C
980 mm
Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 45.42° N, 4.37° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.
Air you breathe in Saint-Étienne: pollution and pollen
2/6
Fair
European Air Quality Index (EAQI), from Copernicus CAMS
PM2.511µg/m³
PM1016µg/m³
O₃38µg/m³
NO₂12µg/m³
SO₂1µg/m³
Pollen
AlderNone
BirchNone
GrassNone
MugwortNone
OliveNone
RagweedNone
Copernicus CAMS model, updated several times a day.
Rain radar around Saint-Étienne
Rain observed over the last two hours by official weather radars around Saint-Étienne, followed by the radar forecast for the next hour where the weather service provides one.
--:--
Rain radarLast two hours, then forecast where available · drag the timeline
Moon over Saint-Étienne
Waning gibbous
87 % illuminated · 18.3 days
Rise 05:22 Set 22:38
Fri30/1079%
Sat31/1069%
Sun1/1159%
Mon2/1149%Last quarter
Tue3/1138%
Wed4/1128%
Thu5/1119%
Fri6/1112%
Sat7/116%
Sun8/112%
Mon9/110%
Tue10/111%New moon
Moonrise and moonset in local time (Europe/Paris); phase and lit fraction from a synodic calculation.
Look up a past day in Saint-Étienne
Curious about the weather in Saint-Étienne on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.
Saint-Étienne weather at a glance
This page gathers everything about the weather in Saint-Étienne, Loire (42): conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “partly cloudy”, it is 11 °C (feels like 11 °C) and the wind blows at 2 km/h.
Expected range today: 5 °C to 11 °C and a dry sky. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.
Use the Saint-Étienne forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.
