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.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: UTC.
Coordinates: 39.6045256°N, -105.9565314°E · Requested elevation: 2829 m. Model terrain: 3313 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) 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.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Friday, 09/10 18:00 16.2 20 11 6 2B W — — 1017 — Partly cloudy 25% cloud 21:00 15 25 12 6 2B W 0.26 0 1014 — Cloudy 56% cloud Saturday, 10/10 00:00 10.8 40 10 5 2B W 0.27 0 1015 — Partly cloudy 47% cloud 03:00 5.1 61 4 2 1B SW 0.00 0 1016 — Clear 0% cloud 06:00 3.7 61 4 2 1B SW 0.00 0 1016 — Clear 0% cloud 09:00 3 61 3 2 1B SW 0 0 1015 — Clear 0% cloud 12:00 2.9 63 3 2 1B SW 0 0 1014 — Clear 3% cloud 15:00 9.1 49 5 2 1B SW 0 0 1015 — Clear 5% cloud 18:00 12.9 43 16 8 3B W 0.35 0 1012 — Partly cloudy 49% cloud 21:00 14 39 14 7 3B SW 1.2 0 1009 — Partly cloudy 27% cloud Sunday, 11/10 00:00 10.6 49 9 5 2B SW 0.33 0 1010 — Overcast 87% cloud 03:00 6.8 66 4 2 1B SW 0.02 0 1012 — Overcast 97% cloud 06:00 5.3 72 4 2 1B S 0 0 1012 — Overcast 89% cloud 09:00 4.6 75 5 2 1B SW 0.01 0 1011 — Overcast 92% cloud 12:00 4.8 77 5 3 1B SW 0.01 0 1012 — Cloudy 58% cloud 15:00 9.4 61 6 3 2B S 0 0 1013 — Cloudy 75% cloud 18:00 14.9 40 16 9 3B SW 0.03 0 1010 — Clear 16% cloud 21:00 16.6 32 17 9 3B SW 0.30 0 1006 — Clear 15% cloud Monday, 12/10 00:00 13.6 37 10 5 2B S 0.05 0 1007 — Cloudy 53% cloud 03:00 8.2 65 9 5 2B SW 0.15 0 1011 — Partly cloudy 49% cloud 06:00 5.4 75 5 3 1B S 0.08 0 1011 — Partly cloudy 29% cloud 09:00 4.6 72 10 6 2B SW 0.00 0 1012 — Clear 2% cloud 12:00 3.7 56 12 6 2B SW 0 0 1013 — Clear 5% cloud 15:00 7.3 50 8 4 2B SW 0 0 1015 — Clear 1% cloud 18:00 12.9 28 13 7 3B SW 0 0 1012 — Clear 1% cloud 21:00 15.3 19 13 7 3B SW 0 0 1009 — Clear 1% cloud Tuesday, 13/10 00:00 11.5 32 6 3 2B SW 0 0 1011 — Clear 8% cloud 03:00 5.9 48 6 3 1B SE 0 0 1012 — Clear 2% cloud 06:00 3.8 59 6 3 1B SE 0 0 1014 — Clear 0% cloud 09:00 2.9 63 7 4 2B SE 0 0 1014 — Clear 1% cloud 12:00 2.7 69 8 4 2B SE 0 0 1014 — Clear 12% cloud 15:00 8 58 11 6 2B SE 0 0 1015 — Clear 7% cloud 18:00 12.9 31 15 8 3B S 0 0 1012 — Clear 16% cloud 21:00 13.5 27 15 8 3B S 0.06 0 1010 — Partly cloudy 39% cloud Wednesday, 14/10 00:00 9.2 47 12 6 2B SE 0.23 0 1012 — Clear 12% cloud 03:00 4.8 65 8 4 2B SE 0.01 0 1015 — Partly cloudy 41% cloud 06:00 3.5 81 9 5 2B SE 0.00 0 1017 — Partly cloudy 35% cloud 09:00 2.4 81 8 4 2B SE 0.00 0 1018 — Partly cloudy 50% cloud 12:00 2.4 80 10 5 2B SE 0 0 1018 — Partly cloudy 49% cloud 15:00 5.4 75 14 7 3B SE 0.03 0 1019 — Overcast 90% cloud 18:00 8.1 60 20 11 4B SE 0.44 0 1017 — Cloudy 73% cloud 21:00 7.6 65 19 10 3B SE 1.3 0 1015 — Overcast 84% cloud Thursday, 15/10 00:00 4.6 84 9 5 2B SE 2.4 0 1018 — Overcast 92% cloud 03:00 2.5 86 2 1 1B W 6.1 0 1023 — Overcast 100% cloud 06:00 -0.9 86 2 1 1B SE 1.0 2 1024 — Overcast 98% cloud 09:00 -1.3 85 4 2 1B SE 0.01 0 1024 — Cloudy 80% cloud 12:00 -2.8 80 3 2 1B SE 0.01 0 1024 — Partly cloudy 48% cloud 15:00 3.7 66 4 2 1B SE 0 0 1026 — Partly cloudy 27% cloud 18:00 8.5 47 9 5 2B SE 0 0 1024 — Partly cloudy 23% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
Keystone is a downhill ski area in Colorado, United States. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 2829 to 3742 metres above sea level.
Data: OpenSkiData / OpenSkiMap, OpenStreetMap contributors (ODbL), Skimap.org, Who's On First, Mapterhorn.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: UTC.
Coordinates: 39.6039157°N, -105.953871°E · Requested elevation: 2830 m. Model terrain: 3314 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) 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.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Friday, 09/10 18:00 16.2 20 11 6 2B W — — 1017 — Partly cloudy 25% cloud 21:00 15 25 12 6 2B W 0.26 0 1014 — Cloudy 56% cloud Saturday, 10/10 00:00 10.8 40 10 5 2B W 0.27 0 1015 — Partly cloudy 47% cloud 03:00 5.1 60 4 2 1B SW 0.00 0 1016 — Clear 0% cloud 06:00 3.7 61 4 2 1B SW 0.00 0 1016 — Clear 0% cloud 09:00 3 61 3 2 1B SW 0 0 1015 — Clear 0% cloud 12:00 2.9 63 3 2 1B SW 0 0 1014 — Clear 3% cloud 15:00 9.1 49 5 3 1B SW 0 0 1015 — Clear 5% cloud 18:00 12.9 43 16 8 3B W 0.35 0 1012 — Partly cloudy 49% cloud 21:00 14 39 14 7 3B SW 1.2 0 1009 — Partly cloudy 27% cloud Sunday, 11/10 00:00 10.6 49 9 5 2B SW 0.33 0 1010 — Overcast 87% cloud 03:00 6.8 66 5 2 1B SW 0.02 0 1012 — Overcast 97% cloud 06:00 5.3 72 4 2 1B S 0 0 1012 — Overcast 89% cloud 09:00 4.6 75 5 2 1B SW 0.01 0 1011 — Overcast 92% cloud 12:00 4.8 77 5 3 1B SW 0.01 0 1012 — Cloudy 58% cloud 15:00 9.4 61 6 3 2B S 0 0 1013 — Cloudy 74% cloud 18:00 14.9 40 16 9 3B SW 0.03 0 1010 — Clear 16% cloud 21:00 16.6 32 17 9 3B SW 0.30 0 1006 — Clear 15% cloud Monday, 12/10 00:00 13.6 37 10 5 2B S 0.05 0 1007 — Cloudy 53% cloud 03:00 8.2 65 9 5 2B SW 0.15 0 1011 — Partly cloudy 49% cloud 06:00 5.4 75 5 3 1B S 0.08 0 1011 — Partly cloudy 29% cloud 09:00 4.6 72 10 6 2B SW 0.00 0 1012 — Clear 2% cloud 12:00 3.7 56 12 6 2B SW 0 0 1013 — Clear 5% cloud 15:00 7.3 50 8 4 2B SW 0 0 1015 — Clear 1% cloud 18:00 12.9 29 13 7 3B SW 0 0 1012 — Clear 1% cloud 21:00 15.3 19 13 7 3B SW 0 0 1009 — Clear 1% cloud Tuesday, 13/10 00:00 11.5 33 6 3 2B SW 0 0 1011 — Clear 8% cloud 03:00 5.9 48 6 3 1B SE 0 0 1012 — Clear 2% cloud 06:00 3.8 59 6 3 1B SE 0 0 1014 — Clear 0% cloud 09:00 2.9 63 7 4 2B SE 0 0 1014 — Clear 1% cloud 12:00 2.7 69 8 4 2B SE 0 0 1014 — Clear 12% cloud 15:00 8 59 11 6 2B SE 0 0 1015 — Clear 7% cloud 18:00 12.9 31 15 8 3B S 0 0 1012 — Clear 16% cloud 21:00 13.4 27 15 8 3B S 0.06 0 1010 — Partly cloudy 39% cloud Wednesday, 14/10 00:00 9.2 47 12 6 2B SE 0.23 0 1012 — Clear 12% cloud 03:00 4.8 65 8 4 2B SE 0.01 0 1015 — Partly cloudy 42% cloud 06:00 3.5 81 9 5 2B SE 0.00 0 1017 — Partly cloudy 36% cloud 09:00 2.4 81 8 4 2B SE 0.00 0 1018 — Cloudy 50% cloud 12:00 2.4 81 10 5 2B SE 0 0 1018 — Cloudy 50% cloud 15:00 5.3 75 14 7 3B SE 0.03 0 1019 — Overcast 90% cloud 18:00 8 60 20 11 4B SE 0.45 0 1017 — Cloudy 73% cloud 21:00 7.6 65 19 10 3B SE 1.3 0 1015 — Overcast 84% cloud Thursday, 15/10 00:00 4.6 85 9 5 2B SE 2.4 0 1018 — Overcast 92% cloud 03:00 2.5 86 2 1 1B W 6.1 0 1023 — Overcast 100% cloud 06:00 -0.8 86 2 1 1B SE 1.0 2 1024 — Overcast 98% cloud 09:00 -1.3 85 4 2 1B SE 0.01 0 1024 — Cloudy 80% cloud 12:00 -2.8 80 3 2 1B SE 0.01 0 1024 — Partly cloudy 48% cloud 15:00 3.7 66 4 2 1B SE 0 0 1026 — Partly cloudy 27% cloud 18:00 8.5 47 9 5 2B SE 0 0 1024 — Partly cloudy 23% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
ECMWF IFS · Run 2026-10-09 18:00:00 UTC · 6 days · Times: UTC.
Coordinates: 39.5633694°N, -105.9146555°E · Requested elevation: 3742 m. Model terrain: 3339 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) 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.
Day Time (UTC) Temp. (°C) Humidity (%) Wind (km/h) Wind (knots) Wind (Bft) Direction Precip. (mm) Snow (cm) Pressure (hPa) Freezing (m) Conditions | Friday, 09/10 18:00 11.1 25 12 6 2B W — — 1017 — Partly cloudy 29% cloud 21:00 10 29 12 7 3B W 0.29 0 1014 — Cloudy 58% cloud Saturday, 10/10 00:00 6 48 11 6 2B W 0.24 0 1015 — Partly cloudy 35% cloud 03:00 -0 76 4 2 1B SW 0.00 0 1016 — Clear 0% cloud 06:00 -1.2 77 5 3 1B W 0.00 0 1016 — Clear 0% cloud 09:00 -1.7 77 5 2 1B W 0 0 1015 — Clear 0% cloud 12:00 -1.7 79 5 3 1B W 0 0 1014 — Clear 3% cloud 15:00 4.4 60 6 3 2B W 0 0 1015 — Clear 5% cloud 18:00 7.9 53 16 9 3B W 0.37 0 1012 — Partly cloudy 45% cloud 21:00 9.1 47 14 8 3B SW 1.1 0 1009 — Partly cloudy 25% cloud Sunday, 11/10 00:00 5.5 62 9 5 2B SW 0.33 0 1011 — Overcast 86% cloud 03:00 1.9 84 5 2 1B SW 0.02 0 1012 — Overcast 96% cloud 06:00 0.3 91 4 2 1B SW 0 0 1012 — Overcast 90% cloud 09:00 -0.3 94 4 2 1B SW 0.01 0 1012 — Overcast 92% cloud 12:00 -0.2 97 5 3 1B SW 0.01 0 1012 — Cloudy 53% cloud 15:00 4.5 77 6 3 1B SW 0 0 1013 — Cloudy 73% cloud 18:00 9.8 50 16 9 3B SW 0.02 0 1010 — Clear 18% cloud 21:00 11.4 42 16 9 3B SW 0.30 0 1006 — Clear 13% cloud Monday, 12/10 00:00 8.3 50 11 6 2B S 0.07 0 1007 — Cloudy 50% cloud 03:00 3 83 8 4 2B SW 0.14 0 1011 — Partly cloudy 48% cloud 06:00 0.4 95 5 3 1B S 0.06 0 1011 — Partly cloudy 26% cloud 09:00 -0.6 93 9 5 2B SW 0.00 0 1013 — Clear 2% cloud 12:00 -1.5 74 12 6 2B SW 0 0 1013 — Clear 4% cloud 15:00 2.2 66 8 5 2B SW 0 0 1015 — Clear 2% cloud 18:00 7.9 36 14 7 3B SW 0 0 1012 — Clear 1% cloud 21:00 10.2 23 14 8 3B SW 0 0 1009 — Clear 1% cloud Tuesday, 13/10 00:00 6.3 42 5 3 1B SW 0 0 1011 — Clear 5% cloud 03:00 0.9 63 5 3 1B SE 0 0 1013 — Clear 2% cloud 06:00 -1.2 75 4 2 1B SE 0 0 1014 — Clear 0% cloud 09:00 -2.2 81 6 3 2B SE 0 0 1014 — Clear 1% cloud 12:00 -2.3 88 7 4 2B S 0 0 1015 — Clear 13% cloud 15:00 2.8 75 11 6 2B S 0 0 1016 — Clear 8% cloud 18:00 7.6 41 15 8 3B S 0 0 1012 — Clear 18% cloud 21:00 7.9 38 15 8 3B S 0.08 0 1010 — Partly cloudy 37% cloud Wednesday, 14/10 00:00 4.2 58 10 6 2B S 0.25 0 1012 — Clear 10% cloud 03:00 -0.5 86 7 4 2B SE 0.01 0 1016 — Partly cloudy 44% cloud 06:00 -1.7 100 7 4 2B SE 0.01 0 1017 — Cloudy 51% cloud 09:00 -2.5 100 6 4 2B SE 0.00 0 1018 — Cloudy 63% cloud 12:00 -2.8 100 8 4 2B SE 0 0 1018 — Cloudy 61% cloud 15:00 -0.1 100 12 7 3B SE 0.05 0 1020 — Overcast 95% cloud 18:00 2.5 82 19 10 3B SE 0.62 0 1018 — Overcast 82% cloud 21:00 2 89 17 9 3B SE 1.7 0 1016 — Overcast 89% cloud Thursday, 15/10 00:00 -0.6 100 8 5 2B SE 2.7 6 1018 — Overcast 96% cloud 03:00 -2.5 100 2 1 1B W 5.6 17 1023 — Overcast 100% cloud 06:00 -5.3 100 2 1 1B SE 0.97 8 1024 — Overcast 98% cloud 09:00 -6.1 100 3 1 1B SE 0.01 0 1024 — Cloudy 79% cloud 12:00 -7.7 100 2 1 1B SE 0.02 0 1024 — Partly cloudy 49% cloud 15:00 -1.3 84 3 2 1B SE 0 0 1026 — Partly cloudy 28% cloud 18:00 3.2 61 10 5 2B SE 0 0 1024 — Partly cloudy 30% cloud |
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