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 -2.7 79 4 2 1B N — — 1018 — Cloudy 70% cloud 09:00 -3.5 77 7 4 2B NE 0 0 1020 — Cloudy 62% cloud 12:00 -6.2 77 7 4 2B NE 0 0 1020 — Cloudy 59% cloud 15:00 -3.7 67 5 3 1B NE 0 0 1021 — Partly cloudy 36% cloud 18:00 6.2 37 4 2 1B S 0 0 1019 — Clear 0% cloud 21:00 7.4 38 8 4 2B S 0 0 1017 — Clear 10% cloud Friday, 06/11 00:00 1.5 63 3 2 1B S 0 0 1020 — Overcast 89% cloud 03:00 -3.4 77 2 1 1B NE 0 0 1022 — Overcast 91% cloud 06:00 -3.9 74 3 1 1B E 0 0 1023 — Overcast 100% cloud 09:00 -4.7 76 3 2 1B NE 0 0 1024 — Overcast 100% cloud 12:00 -4.3 77 5 2 1B NE 0 0 1024 — Overcast 100% cloud 15:00 -1.9 71 5 3 1B NE 0 0 1025 — Overcast 100% cloud 18:00 5.3 49 2 1 1B S 0 0 1023 — Overcast 99% cloud 21:00 6.6 44 2 1 1B S 0.08 0 1020 — Cloudy 80% cloud Saturday, 07/11 00:00 2.9 59 0 0 0B S 0.02 0 1022 — Partly cloudy 43% cloud 03:00 -2.2 73 3 2 1B NE 0 0 1023 — Clear 4% cloud 06:00 -5.5 73 5 3 1B NE 0 0 1024 — Partly cloudy 32% cloud 09:00 -7.4 74 7 4 2B NE 0 0 1024 — Partly cloudy 34% cloud 12:00 -8.2 71 7 4 2B NE 0 0 1024 — Partly cloudy 37% cloud 15:00 -4.7 60 7 4 2B NE 0 0 1025 — Clear 18% cloud 18:00 8.3 29 1 1 1B N 0 0 1023 — Clear 0% cloud 21:00 9.8 27 1 1 1B SE 0 0 1020 — Clear 0% cloud Sunday, 08/11 00:00 3.2 56 2 1 1B E 0 0 1022 — Clear 0% cloud 03:00 -2.6 62 3 2 1B NE 0 0 1024 — Clear 5% cloud 06:00 -4.4 56 4 2 1B NE 0 0 1026 — Clear 0% cloud 09:00 -5.1 57 4 2 1B NE 0 0 1026 — Clear 0% cloud 12:00 -5.5 56 4 2 1B NE 0 0 1026 — Clear 0% cloud 15:00 -1.4 42 5 3 1B NE 0 0 1027 — Clear 0% cloud 18:00 10.1 25 3 2 1B W 0 0 1024 — Clear 0% cloud 21:00 11 30 3 2 1B W 0 0 1022 — Clear 0% cloud Monday, 09/11 00:00 3.9 57 1 1 1B NE 0 0 1023 — Clear 0% cloud 03:00 -2 63 3 2 1B NE 0 0 1024 — Clear 0% cloud 06:00 -3.6 59 3 2 1B NE 0 0 1024 — Clear 0% cloud 09:00 -4.1 51 4 2 1B NE 0 0 1023 — Clear 0% cloud 12:00 -4.5 44 5 3 1B N 0 0 1022 — Clear 0% cloud 15:00 -0.1 36 6 3 1B N 0 0 1023 — Clear 0% cloud 18:00 11.6 20 1 1 1B NW 0 0 1021 — Clear 0% cloud 21:00 11.8 26 1 0 0B W 0 0 1019 — Clear 0% cloud Tuesday, 10/11 00:00 4.7 49 2 1 1B NE 0.05 0 1021 — Clear 0% cloud 03:00 -1.6 55 4 2 1B NE 0 0 1022 — Clear 0% cloud 06:00 -2.5 53 3 2 1B NE 0 0 1023 — Clear 0% cloud 09:00 -2.9 56 3 2 1B NE 0 0 1023 — Clear 8% cloud 12:00 -3.4 59 3 2 1B NE 0 0 1022 — Clear 2% cloud 15:00 0.1 52 4 2 1B NE 0 0 1024 — Partly cloudy 26% cloud 18:00 10.5 25 3 1 1B W 0 0 1022 — Cloudy 75% cloud 21:00 10.5 31 2 1 1B NW 0 0 1020 — Overcast 87% cloud Wednesday, 11/11 00:00 4 57 2 1 1B N 0 0 1022 — Cloudy 74% cloud 03:00 -2.2 58 6 3 2B NE 0 0 1023 — Clear 4% cloud 06:00 -4.1 50 7 4 2B NE 0 0 1024 — Clear 0% cloud |
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Forecast table times: UTC.
Coordinates: 37.6280598°N, -107.8108897°E · Requested elevation: 2680 m. Model terrain: 3138 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.

Purgatory Resort is a downhill ski area in Colorado, United States. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 2680 to 3291 metres above sea level.
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 -3 80 4 2 1B N — — 1018 — Cloudy 71% cloud 09:00 -3.8 78 7 4 2B NE 0 0 1020 — Cloudy 62% cloud 12:00 -6.5 78 7 4 2B NE 0 0 1020 — Cloudy 59% cloud 15:00 -4 67 5 3 1B NE 0 0 1021 — Partly cloudy 36% cloud 18:00 6 37 4 2 1B S 0 0 1019 — Clear 0% cloud 21:00 7.1 39 8 4 2B S 0 0 1017 — Clear 10% cloud Friday, 06/11 00:00 1.2 63 3 2 1B S 0 0 1020 — Overcast 89% cloud 03:00 -3.6 78 2 1 1B NE 0 0 1022 — Overcast 91% cloud 06:00 -4.2 75 3 1 1B E 0 0 1023 — Overcast 100% cloud 09:00 -5 77 3 2 1B NE 0 0 1024 — Overcast 100% cloud 12:00 -4.6 78 5 2 1B NE 0 0 1024 — Overcast 100% cloud 15:00 -2.2 72 5 3 1B NE 0 0 1025 — Overcast 100% cloud 18:00 5 49 2 1 1B S 0 0 1023 — Overcast 99% cloud 21:00 6.3 45 2 1 1B S 0.08 0 1020 — Overcast 80% cloud Saturday, 07/11 00:00 2.6 60 0 0 0B S 0.02 0 1022 — Partly cloudy 44% cloud 03:00 -2.5 74 3 2 1B NE 0 0 1023 — Clear 3% cloud 06:00 -5.8 74 5 3 1B NE 0 0 1024 — Partly cloudy 33% cloud 09:00 -7.7 75 7 4 2B NE 0 0 1024 — Partly cloudy 34% cloud 12:00 -8.5 72 7 4 2B NE 0 0 1024 — Partly cloudy 37% cloud 15:00 -5 61 7 4 2B NE 0 0 1025 — Clear 18% cloud 18:00 8 29 1 1 1B N 0 0 1023 — Clear 0% cloud 21:00 9.5 27 1 1 1B SE 0 0 1020 — Clear 0% cloud Sunday, 08/11 00:00 2.9 57 1 1 1B E 0 0 1022 — Clear 0% cloud 03:00 -2.9 63 3 2 1B NE 0 0 1024 — Clear 5% cloud 06:00 -4.7 57 4 2 1B NE 0 0 1026 — Clear 0% cloud 09:00 -5.4 57 4 2 1B NE 0 0 1026 — Clear 0% cloud 12:00 -5.8 57 4 2 1B NE 0 0 1026 — Clear 0% cloud 15:00 -1.7 43 5 3 1B NE 0 0 1027 — Clear 0% cloud 18:00 9.8 26 3 2 1B W 0 0 1024 — Clear 0% cloud 21:00 10.7 30 3 2 1B W 0 0 1022 — Clear 0% cloud Monday, 09/11 00:00 3.6 57 1 1 1B NE 0 0 1023 — Clear 0% cloud 03:00 -2.3 64 3 2 1B NE 0 0 1024 — Clear 0% cloud 06:00 -3.9 60 3 2 1B NE 0 0 1024 — Clear 0% cloud 09:00 -4.4 51 4 2 1B N 0 0 1023 — Clear 0% cloud 12:00 -4.8 45 5 3 1B N 0 0 1022 — Clear 0% cloud 15:00 -0.3 36 5 3 1B N 0 0 1023 — Clear 0% cloud 18:00 11.3 20 1 1 1B NW 0 0 1021 — Clear 0% cloud 21:00 11.5 26 1 0 0B W 0 0 1019 — Clear 0% cloud Tuesday, 10/11 00:00 4.4 49 2 1 1B NE 0.05 0 1021 — Clear 0% cloud 03:00 -1.9 56 4 2 1B NE 0 0 1022 — Clear 0% cloud 06:00 -2.7 53 3 2 1B NE 0 0 1023 — Clear 0% cloud 09:00 -3.2 57 3 2 1B NE 0 0 1023 — Clear 8% cloud 12:00 -3.6 59 3 2 1B NE 0 0 1022 — Clear 2% cloud 15:00 -0.1 52 4 2 1B NE 0 0 1024 — Partly cloudy 26% cloud 18:00 10.2 26 3 1 1B W 0 0 1022 — Cloudy 75% cloud 21:00 10.3 31 2 1 1B NW 0 0 1020 — Overcast 87% cloud Wednesday, 11/11 00:00 3.7 57 2 1 1B N 0 0 1022 — Cloudy 74% cloud 03:00 -2.5 59 6 3 2B NE 0 0 1023 — Clear 5% cloud 06:00 -4.4 51 7 4 2B NE 0 0 1024 — Clear 0% cloud |
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Forecast table times: UTC.
Coordinates: 37.6294546°N, -107.8149743°E · Requested elevation: 2731 m. Model terrain: 3141 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 -5.9 95 4 2 1B N — — 1018 — Cloudy 72% cloud 09:00 -6.8 93 6 3 2B N 0 0 1020 — Cloudy 62% cloud 12:00 -9.3 93 6 3 2B NE 0 0 1020 — Cloudy 53% cloud 15:00 -6.7 78 4 2 1B NE 0 0 1021 — Partly cloudy 30% cloud 18:00 3 42 4 2 1B S 0 0 1019 — Clear 0% cloud 21:00 4.1 45 8 4 2B S 0 0 1017 — Clear 10% cloud Friday, 06/11 00:00 -1.8 74 3 2 1B S 0 0 1020 — Overcast 91% cloud 03:00 -6.3 90 2 1 1B E 0 0 1022 — Overcast 93% cloud 06:00 -6.6 88 3 1 1B E 0 0 1023 — Overcast 100% cloud 09:00 -7.3 91 3 2 1B E 0 0 1024 — Overcast 100% cloud 12:00 -7.1 93 4 2 1B NE 0 0 1024 — Overcast 99% cloud 15:00 -4.8 85 4 2 1B NE 0 0 1025 — Overcast 100% cloud 18:00 2 57 3 1 1B S 0 0 1023 — Overcast 99% cloud 21:00 3.3 52 2 1 1B S 0.08 0 1020 — Overcast 80% cloud Saturday, 07/11 00:00 -0.5 72 0 0 0B SW 0.02 0 1022 — Partly cloudy 47% cloud 03:00 -5.4 88 3 2 1B NE 0 0 1023 — Clear 3% cloud 06:00 -8.4 88 4 2 1B NE 0 0 1024 — Partly cloudy 30% cloud 09:00 -10.1 89 6 3 1B NE 0 0 1024 — Partly cloudy 30% cloud 12:00 -10.7 85 6 3 2B NE 0 0 1024 — Partly cloudy 33% cloud 15:00 -7 70 6 3 1B NE 0 0 1025 — Clear 15% cloud 18:00 5.1 33 1 1 1B N 0 0 1022 — Clear 0% cloud 21:00 6.7 30 1 1 1B SE 0 0 1020 — Clear 0% cloud Sunday, 08/11 00:00 -0.2 68 1 1 1B E 0 0 1022 — Clear 0% cloud 03:00 -5.4 75 3 1 1B NE 0 0 1024 — Clear 5% cloud 06:00 -7.1 68 3 2 1B NE 0 0 1026 — Clear 0% cloud 09:00 -7.6 68 3 2 1B NE 0 0 1026 — Clear 0% cloud 12:00 -8 69 3 2 1B N 0 0 1026 — Clear 0% cloud 15:00 -4 52 4 2 1B N 0 0 1027 — Clear 0% cloud 18:00 6.8 30 3 2 1B W 0 0 1024 — Clear 0% cloud 21:00 7.7 35 3 2 1B W 0 0 1022 — Clear 0% cloud Monday, 09/11 00:00 0.5 66 1 1 1B NE 0 0 1023 — Clear 0% cloud 03:00 -4.9 74 2 1 1B NE 0 0 1024 — Clear 0% cloud 06:00 -6.4 70 2 1 1B N 0 0 1024 — Clear 0% cloud 09:00 -6.8 61 3 2 1B N 0 0 1024 — Clear 0% cloud 12:00 -7.2 53 4 2 1B N 0 0 1022 — Clear 0% cloud 15:00 -2.8 42 5 3 1B N 0 0 1023 — Clear 0% cloud 18:00 8.5 22 1 1 1B NW 0 0 1021 — Clear 0% cloud 21:00 8.6 29 1 1 1B NW 0 0 1019 — Clear 0% cloud Tuesday, 10/11 00:00 1.2 58 2 1 1B NE 0.03 0 1021 — Clear 0% cloud 03:00 -4.5 65 3 2 1B NE 0 0 1022 — Clear 0% cloud 06:00 -5.2 62 3 1 1B NE 0 0 1023 — Clear 0% cloud 09:00 -5.6 67 2 1 1B N 0 0 1023 — Clear 8% cloud 12:00 -6 69 2 1 1B N 0 0 1022 — Clear 3% cloud 15:00 -2.5 60 3 2 1B N 0 0 1024 — Partly cloudy 26% cloud 18:00 7.3 29 3 1 1B W 0 0 1022 — Cloudy 72% cloud 21:00 7.4 34 3 1 1B NW 0 0 1020 — Overcast 87% cloud Wednesday, 11/11 00:00 0.6 64 2 1 1B N 0 0 1022 — Cloudy 73% cloud 03:00 -5.2 70 6 3 1B N 0 0 1023 — Clear 5% cloud 06:00 -6.9 60 6 3 2B N 0 0 1024 — Clear 0% cloud |
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Forecast table times: UTC.
Coordinates: 37.6180421°N, -107.8531325°E · Requested elevation: 3291 m. Model terrain: 3126 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.