Each colour starts at the value shown. Wind colours match across all three units. Dry cells stay neutral. Colours describe the displayed values, not official weather warnings.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 06:00 3.7 67 3 1 1B E — — 1022 1980 Overcast 93% cloud 09:00 8.7 58 4 2 1B SE 0.25 0 1022 2651 Cloudy 79% cloud 12:00 12.3 46 1 1 1B E 0.04 0 1021 2846 Partly cloudy 44% cloud 15:00 10.1 60 1 1 1B N 0.02 0 1021 2750 Cloudy 72% cloud 18:00 6.9 73 1 1 1B SE 0.47 0 1022 2462 Overcast 87% cloud 21:00 5.9 75 2 1 1B SE 0.99 0 1023 2348 Overcast 91% cloud Friday, 06/11 00:00 5.4 78 2 1 1B E 0.87 0 1023 2245 Overcast 100% cloud 03:00 5.3 79 2 1 1B E 2.4 0 1022 2182 Overcast 99% cloud 06:00 4.6 79 1 0 0B SE 0.62 0 1022 2054 Cloudy 72% cloud 09:00 7.1 81 0 0 0B E 0.14 0 1022 2265 Overcast 81% cloud 12:00 8.1 74 3 2 1B NW 0.26 0 1022 2310 Overcast 99% cloud 15:00 6.6 85 4 2 1B NW 1.2 0 1022 2150 Overcast 100% cloud 18:00 5.6 89 2 1 1B NW 2.1 0 1023 2032 Overcast 100% cloud 21:00 5.3 88 2 1 1B W 0.65 0 1024 1970 Overcast 100% cloud Saturday, 07/11 00:00 5.1 87 1 0 0B NW 0.32 0 1023 1954 Overcast 98% cloud 03:00 4.4 90 0 0 0B E 0.02 0 1023 1849 Overcast 99% cloud 06:00 4.1 87 0 0 0B E 0 0 1024 1815 Cloudy 74% cloud 09:00 6 81 1 1 1B E 0 0 1024 2119 Cloudy 59% cloud 12:00 8.8 61 2 1 1B NW 0.02 0 1022 2374 Partly cloudy 34% cloud 15:00 7.6 70 3 2 1B NW 0 0 1022 2245 Partly cloudy 30% cloud 18:00 3.8 84 1 0 0B SE 0.03 0 1024 1794 Partly cloudy 22% cloud 21:00 1.3 82 2 1 1B SE 0 0 1024 < 1433 Partly cloudy 48% cloud Sunday, 08/11 00:00 -1.1 82 2 1 1B SE 0 0 1024 < 1433 Partly cloudy 41% cloud 03:00 -0.7 75 2 1 1B SE 0 0 1024 < 1433 Cloudy 55% cloud 06:00 0.2 65 2 1 1B SE 0 0 1023 < 1433 Partly cloudy 32% cloud 09:00 7.4 47 2 1 1B SW 0 0 1024 2264 Clear 18% cloud 12:00 10.5 33 4 2 1B SW 0 0 1022 2462 Cloudy 67% cloud 15:00 9.3 47 1 1 0B SW 0 0 1022 2356 Overcast 82% cloud 18:00 6.3 48 2 1 1B SE 0 0 1022 2141 Overcast 95% cloud 21:00 5.6 55 2 1 1B SE 0 0 1021 2125 Overcast 99% cloud Monday, 09/11 00:00 6 58 2 1 1B SE 0 0 1021 2262 Overcast 100% cloud 03:00 5.2 60 2 1 1B SE 0 0 1019 2278 Overcast 98% cloud 06:00 4.5 61 3 1 1B SE 0 0 1019 2122 Overcast 94% cloud 09:00 10.2 53 4 2 1B SE 0 0 1019 2674 Overcast 98% cloud 12:00 12.9 50 2 1 1B S 0.07 0 1017 2829 Overcast 96% cloud 15:00 10.6 73 2 1 1B SE 0.69 0 1016 2819 Overcast 98% cloud 18:00 9.2 75 2 1 1B SE 1.2 0 1016 2742 Overcast 99% cloud 21:00 9 72 2 1 1B SE 0.08 0 1016 2748 Overcast 100% cloud Tuesday, 10/11 00:00 8.6 75 2 1 1B SE 0.11 0 1015 2731 Overcast 100% cloud 03:00 8.1 80 2 1 1B SE 0.86 0 1014 2792 Overcast 100% cloud 06:00 8.3 81 2 1 1B SE 1.8 0 1013 2900 Overcast 100% cloud 09:00 9.8 84 3 1 1B S 1.1 0 1014 2915 Overcast 100% cloud 12:00 12.5 74 1 1 1B SW 0.75 0 1013 2963 Overcast 82% cloud 15:00 11.6 79 1 1 0B SE 0.87 0 1012 2925 Cloudy 70% cloud 18:00 8.2 83 1 1 0B SE 0.16 0 1013 2901 Cloudy 67% cloud 21:00 5.3 85 2 1 1B SE 0 0 1013 3054 Cloudy 53% cloud Wednesday, 11/11 00:00 4.6 83 2 1 1B SE 0 0 1012 3052 Partly cloudy 26% cloud 03:00 5.9 73 2 1 1B SE 0 0 1011 2942 Clear 18% cloud 06:00 5.9 71 2 1 1B SE 0 0 1011 2910 Cloudy 52% cloud |
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Forecast table times: UTC.
Coordinates: 45.9159231°N, 6.6002106°E · Requested elevation: 1031 m. Model terrain: 1431 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Les Portes du Mont-Blanc is a downhill ski area in Haute-Savoie, France. Mapped terrain includes beginner, easy, intermediate, advanced routes. Its mapped lift network extends from approximately 1031 to 1925 metres above sea level. Cross-country skiing is also mapped within the area.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 06:00 2.8 69 3 2 1B E — — 1022 1941 Overcast 93% cloud 09:00 7.7 60 5 2 1B SE 0.35 0 1023 2636 Cloudy 79% cloud 12:00 11.1 48 2 1 1B E 0.04 0 1021 2842 Partly cloudy 47% cloud 15:00 9.2 60 1 1 1B NE 0.02 0 1021 2747 Cloudy 72% cloud 18:00 6 75 1 1 1B SE 0.54 0 1022 2455 Overcast 86% cloud 21:00 4.9 77 2 1 1B E 1.1 0 1023 2326 Overcast 91% cloud Friday, 06/11 00:00 4.5 80 2 1 1B E 1.0 0 1023 2232 Overcast 100% cloud 03:00 4.4 81 2 1 1B E 2.5 0 1022 2176 Overcast 99% cloud 06:00 3.7 81 1 0 0B E 0.64 0 1022 2032 Cloudy 70% cloud 09:00 6.2 82 0 0 0B NE 0.13 0 1022 2273 Cloudy 76% cloud 12:00 7.2 76 3 1 1B NW 0.26 0 1021 2317 Overcast 99% cloud 15:00 5.7 87 4 2 1B NW 1.2 0 1021 2154 Overcast 100% cloud 18:00 4.6 91 2 1 1B W 2.2 0 1023 2028 Overcast 100% cloud 21:00 4.4 91 2 1 1B W 0.68 0 1024 1972 Overcast 100% cloud Saturday, 07/11 00:00 4.1 89 1 0 0B NW 0.36 0 1023 1954 Overcast 98% cloud 03:00 3.5 91 0 0 0B E 0.03 0 1023 1859 Overcast 99% cloud 06:00 3.3 89 0 0 0B E 0 0 1024 1827 Cloudy 73% cloud 09:00 5 83 1 1 1B E 0 0 1024 2116 Cloudy 59% cloud 12:00 7.9 63 2 1 1B NW 0.03 0 1022 2378 Partly cloudy 29% cloud 15:00 6.7 72 3 1 1B NW 0 0 1022 2250 Partly cloudy 29% cloud 18:00 2.8 86 1 1 0B SE 0.03 0 1024 1770 Partly cloudy 23% cloud 21:00 0.3 83 2 1 1B SE 0 0 1024 < 1514 Partly cloudy 49% cloud Sunday, 08/11 00:00 -2.1 83 2 1 1B SE 0 0 1024 < 1514 Partly cloudy 42% cloud 03:00 -1.5 74 2 1 1B SE 0 0 1024 < 1514 Cloudy 55% cloud 06:00 -0.7 64 2 1 1B SE 0 0 1023 < 1514 Partly cloudy 31% cloud 09:00 6.5 45 2 1 1B SW 0 0 1024 2267 Clear 17% cloud 12:00 9.3 34 4 2 1B SW 0 0 1022 2456 Cloudy 68% cloud 15:00 8.1 48 1 0 0B SW 0 0 1022 2348 Overcast 83% cloud 18:00 5 49 2 1 1B SE 0 0 1022 2106 Overcast 95% cloud 21:00 4.5 58 2 1 1B SE 0 0 1022 2097 Overcast 99% cloud Monday, 09/11 00:00 4.9 62 2 1 1B SE 0 0 1021 2231 Overcast 100% cloud 03:00 4.1 64 2 1 1B SE 0 0 1020 2233 Overcast 98% cloud 06:00 3.5 65 3 1 1B SE 0 0 1019 2075 Overcast 93% cloud 09:00 9.2 55 4 2 1B SE 0 0 1019 2669 Overcast 97% cloud 12:00 11.6 53 2 1 1B S 0.08 0 1017 2823 Overcast 96% cloud 15:00 9.4 75 2 1 1B SE 0.64 0 1016 2811 Overcast 98% cloud 18:00 8.1 77 2 1 1B SE 1.1 0 1016 2731 Overcast 99% cloud 21:00 7.9 74 2 1 1B SE 0.11 0 1016 2737 Overcast 100% cloud Tuesday, 10/11 00:00 7.6 77 2 1 1B SE 0.10 0 1015 2724 Overcast 100% cloud 03:00 7.2 82 2 1 1B SE 0.89 0 1014 2790 Overcast 100% cloud 06:00 7.4 82 2 1 1B SE 1.7 0 1013 2899 Overcast 100% cloud 09:00 8.8 85 2 1 1B SE 1.2 0 1014 2915 Overcast 100% cloud 12:00 11.5 76 2 1 1B SW 0.70 0 1013 2960 Cloudy 80% cloud 15:00 10.5 82 1 1 0B S 0.92 0 1013 2921 Cloudy 69% cloud 18:00 7.1 86 1 1 1B E 0.14 0 1013 2894 Cloudy 72% cloud 21:00 4.2 87 2 1 1B E 0 0 1013 3054 Cloudy 56% cloud Wednesday, 11/11 00:00 3.8 84 2 1 1B SE 0 0 1012 3052 Partly cloudy 23% cloud 03:00 5.3 73 1 1 1B SE 0 0 1012 2953 Clear 18% cloud 06:00 5.2 72 2 1 1B SE 0 0 1011 2917 Cloudy 51% cloud |
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Forecast table times: UTC.
Coordinates: 45.8916445°N, 6.6220775°E · Requested elevation: 1201 m. Model terrain: 1512 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
Outside the available profile, temperature uses an estimated 5.5°C/km height correction; wind retains the nearest available model-level value. Humidity is estimated with adjusted pressure and temperature.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.
Preparing forecast graphs…
Times and values match the detailed forecast. Tap or point at a value for details. Scroll each chart sideways for later days. Rain / precipitation is the total water equivalent per forecast interval, including snow; snowfall is fresh snow per interval, not snow depth.
GFS and ECMWF model comparison. Each model retains its own forecast times and horizon. Precipitation and snowfall amounts cover their own forecast intervals; these can differ between models.
ECMWF · Model run: Next update expected:
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Thursday, 05/11 06:00 0.3 71 12 7 3B SE — — 1022 2025 Overcast 91% cloud 09:00 3.8 68 15 8 3B SE 0.26 0 1022 2645 Cloudy 77% cloud 12:00 6.6 54 11 6 2B S 0.03 0 1021 2841 Partly cloudy 37% cloud 15:00 5.1 66 8 4 2B SE 0.02 0 1021 2761 Overcast 81% cloud 18:00 2.8 81 7 4 2B SE 0.70 0 1022 2491 Cloudy 79% cloud 21:00 1.8 84 8 4 2B SE 0.71 0 1023 2361 Overcast 90% cloud Friday, 06/11 00:00 1.3 88 6 3 2B S 0.85 0 1023 2259 Overcast 100% cloud 03:00 1.1 90 4 2 1B SE 1.8 0.5 1022 2178 Overcast 97% cloud 06:00 0.5 88 4 2 1B S 0.53 0.2 1022 2055 Cloudy 59% cloud 09:00 2.1 92 3 2 1B S 0.12 0 1022 2279 Cloudy 66% cloud 12:00 2.8 85 2 1 1B SW 0.20 0 1021 2332 Overcast 99% cloud 15:00 1.3 97 4 2 1B NW 1.6 0 1022 2140 Overcast 100% cloud 18:00 0.6 99 4 2 1B N 2.4 0.7 1023 2029 Overcast 100% cloud 21:00 0.2 99 3 2 1B N 0.59 0.2 1024 1965 Overcast 100% cloud Saturday, 07/11 00:00 0.2 93 2 1 1B NW 0.29 0.1 1023 1956 Overcast 100% cloud 03:00 -0.3 95 1 1 1B N 0.01 0 1023 1869 Overcast 98% cloud 06:00 -0.3 89 1 0 0B N 0 0 1024 1861 Cloudy 77% cloud 09:00 1.2 79 2 1 1B S 0 0 1024 2142 Cloudy 76% cloud 12:00 3.3 60 6 3 2B SW 0.06 0 1021 2398 Partly cloudy 30% cloud 15:00 2.2 71 7 4 2B SW 0 0 1022 2258 Partly cloudy 28% cloud 18:00 -0.4 80 6 3 2B SW 0.01 0 1024 1839 Partly cloudy 21% cloud 21:00 -2.1 73 6 3 1B SW 0 0 1024 < 1362 Partly cloudy 45% cloud Sunday, 08/11 00:00 -3.6 70 6 3 2B SW 0 0 1024 < 1362 Partly cloudy 34% cloud 03:00 -3.1 65 7 4 2B SW 0 0 1024 < 1362 Cloudy 70% cloud 06:00 -2.2 55 6 3 2B SW 0 0 1023 < 1362 Partly cloudy 28% cloud 09:00 2.1 46 11 6 2B SW 0 0 1024 2270 Clear 18% cloud 12:00 4.3 35 14 7 3B SW 0 0 1022 2463 Cloudy 74% cloud 15:00 3.3 62 10 5 2B SW 0 0 1022 2355 Overcast 84% cloud 18:00 1.5 63 9 5 2B SW 0 0 1022 2174 Overcast 95% cloud 21:00 1 69 9 5 2B SW 0 0 1021 2128 Overcast 99% cloud Monday, 09/11 00:00 1.7 68 11 6 2B SW 0 0 1021 2305 Overcast 100% cloud 03:00 1.6 66 11 6 2B SW 0 0 1019 2344 Overcast 97% cloud 06:00 1.1 71 13 7 3B SW 0 0 1019 2213 Overcast 92% cloud 09:00 4.8 67 16 8 3B SW 0 0 1019 2679 Overcast 97% cloud 12:00 6.8 66 20 11 4B SW 0.13 0 1017 2830 Overcast 94% cloud 15:00 5.6 82 17 9 3B SW 0.69 0 1016 2834 Overcast 95% cloud 18:00 4.7 84 13 7 3B SW 0.98 0 1016 2757 Overcast 99% cloud 21:00 4.4 83 12 6 2B SW 0.03 0 1015 2750 Overcast 100% cloud Tuesday, 10/11 00:00 4.1 87 14 8 3B SW 0.06 0 1015 2737 Overcast 100% cloud 03:00 3.8 93 11 6 2B SW 0.98 0 1014 2804 Overcast 100% cloud 06:00 4.1 93 15 8 3B SW 1.6 0 1013 2914 Overcast 100% cloud 09:00 5.1 94 9 5 2B SW 1.0 0 1014 2917 Overcast 100% cloud 12:00 6.9 87 10 5 2B W 0.69 0 1013 2968 Cloudy 76% cloud 15:00 6.2 91 5 3 1B W 1.2 0 1012 2933 Cloudy 67% cloud 18:00 4.1 89 3 1 1B W 0.11 0 1012 2906 Cloudy 67% cloud 21:00 2.2 86 3 2 1B SW 0 0 1013 3054 Cloudy 71% cloud Wednesday, 11/11 00:00 1.9 84 5 3 1B SW 0 0 1012 3052 Partly cloudy 27% cloud 03:00 3 77 8 4 2B SW 0 0 1011 2975 Clear 15% cloud 06:00 2.8 75 9 5 2B SW 0 0 1011 2920 Cloudy 59% cloud |
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Forecast table times: UTC.
Coordinates: 45.861744°N, 6.5325426°E · Requested elevation: 1925 m. Model terrain: 1359 m. Terrain and 1000/925/850/700 hPa profiles are used for height estimates.
These are altitude estimates, not a simulation of local mountain terrain. Precipitation, cloud and sea-level pressure use horizontal interpolation only.
Precipitation includes rain and snow water equivalent: preceding 3 hours through day 6, then 6 hours (see cell tooltip). Snow (cm) estimates fresh snowfall from precipitation and temperature using the GFS conversion; it is not snow depth on the ground. Freezing (m) uses additional 600/500 hPa temperatures when available and estimates the lowest resolved 0°C crossing above sea level. When all sampled levels are warm, the upper profile limit is shown (see tooltip). < marks an entirely cold sampled profile and its lower height limit. No extrapolation is used.