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: 44.3368277°N, -103.824538°E · Requested elevation: 1804 m. Model terrain: 1631 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) 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 21.9 21 19 10 3B SW — — 1006 3092 Clear 17% cloud 21:00 23.2 22 21 12 4B SW 0 0 1002 3073 Partly cloudy 37% cloud Saturday, 10/10 00:00 19.6 29 18 10 3B SW 0 0 1001 3063 Clear 0% cloud 03:00 18.1 27 25 14 4B SW 0 0 1001 3060 Clear 0% cloud 06:00 17.2 29 26 14 4B SW 0 0 1001 3052 Clear 0% cloud 09:00 15.5 33 26 14 4B SW 0 0 1001 3038 Clear 0% cloud 12:00 14.9 33 23 13 4B SW 0 0 1001 3033 Clear 0% cloud 15:00 17.5 32 19 10 3B SW 0 0 1001 3042 Clear 0% cloud 18:00 21.6 25 23 13 4B SW 0 0 1000 3043 Clear 1% cloud 21:00 21.6 28 19 10 3B SW 0.18 0 999 3039 Partly cloudy 34% cloud Sunday, 11/10 00:00 17.6 39 11 6 2B SW 0.22 0 1000 3044 Cloudy 57% cloud 03:00 13.6 57 9 5 2B SW 0.17 0 1003 3050 Partly cloudy 31% cloud 06:00 12.3 58 13 7 3B S 0.01 0 1003 3048 Cloudy 52% cloud 09:00 11.4 60 8 4 2B W 0.00 0 1005 3043 Overcast 96% cloud 12:00 9.9 70 6 4 2B SW 0 0 1007 3044 Overcast 100% cloud 15:00 10.5 71 4 2 1B W 0.00 0 1009 3048 Overcast 96% cloud 18:00 12.9 65 4 2 1B W 0.03 0 1008 3050 Overcast 86% cloud 21:00 11.9 69 1 1 0B E 0.11 0 1008 3042 Overcast 89% cloud Monday, 12/10 00:00 8.8 86 9 5 2B SE 0.19 0 1009 3043 Overcast 95% cloud 03:00 7.4 94 13 7 3B S 0.31 0 1010 3056 Overcast 100% cloud 06:00 7.6 92 15 8 3B S 0.81 0 1009 3050 Cloudy 74% cloud 09:00 7.7 87 13 7 3B S 0.06 0 1008 3043 Partly cloudy 42% cloud 12:00 7.4 88 11 6 2B S 0.02 0 1008 3039 Cloudy 52% cloud 15:00 9 82 10 5 2B S 0.01 0 1008 3043 Cloudy 65% cloud 18:00 11.9 67 13 7 3B W 0.08 0 1008 3046 Overcast 84% cloud 21:00 11 74 15 8 3B W 0.03 0 1009 3046 Overcast 96% cloud Tuesday, 13/10 00:00 5.9 93 14 7 3B NW 0.37 0 1015 3059 Overcast 100% cloud 03:00 4.3 89 13 7 3B NW 0.15 0 1018 3071 Overcast 100% cloud 06:00 4.7 89 7 4 2B W 0.24 0 1017 3076 Overcast 84% cloud 09:00 4 92 9 5 2B W 0.04 0 1017 3077 Overcast 97% cloud 12:00 4 96 7 4 2B S 2.3 0 1017 3079 Overcast 92% cloud 15:00 5.5 93 7 4 2B S 0.06 0 1018 3087 Overcast 86% cloud 18:00 9 78 3 2 1B SE 0.21 0 1016 3087 Overcast 94% cloud 21:00 8.6 78 3 2 1B SE 0.26 0 1016 3081 Overcast 99% cloud Wednesday, 14/10 00:00 7.6 79 2 1 1B E 0.02 0 1017 3090 Cloudy 73% cloud 03:00 5.6 90 4 2 1B SW 0.00 0 1019 3105 Cloudy 61% cloud 06:00 5.9 90 2 1 1B W 0 0 1020 3112 Overcast 96% cloud 09:00 5 92 2 1 1B NW 0 0 1021 3117 Cloudy 70% cloud 12:00 6.1 89 2 1 1B NE 0 0 1022 3122 Overcast 98% cloud 15:00 6.9 83 5 3 1B E 0.01 0 1024 3135 Overcast 100% cloud 18:00 9 72 10 5 2B SE 0 0 1024 3140 Overcast 94% cloud 21:00 10.5 64 13 7 3B SE 0.01 0 1022 3134 Overcast 86% cloud Thursday, 15/10 00:00 8.2 70 12 6 2B SE 0 0 1023 3138 Overcast 93% cloud 03:00 6.4 75 12 7 2B SE 0.01 0 1024 3150 Cloudy 69% cloud 06:00 5.2 83 12 6 2B S 0.03 0 1025 3154 Overcast 94% cloud 09:00 5.5 94 7 4 2B S 4.4 0 1024 3156 Partly cloudy 47% cloud 12:00 4.9 94 2 1 1B S 0.13 0 1025 3156 Overcast 95% cloud 15:00 7 94 4 2 1B S 0.35 0 1027 3166 Overcast 86% cloud 18:00 10.9 70 3 2 1B S 0.00 0 1026 3174 Overcast 85% cloud |
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Source: ECMWF · CC BY 4.0 · Processed by Snow Report.
Terry Peak Ski Area is a downhill ski area in South Dakota, United States. Mapped terrain includes easy, intermediate, advanced routes. Its mapped lift network extends from approximately 1804 to 2131 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: 44.3368277°N, -103.824538°E · Requested elevation: 1804 m. Model terrain: 1631 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) 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 21.9 21 19 10 3B SW — — 1006 3092 Clear 17% cloud 21:00 23.2 22 21 12 4B SW 0 0 1002 3073 Partly cloudy 37% cloud Saturday, 10/10 00:00 19.6 29 18 10 3B SW 0 0 1001 3063 Clear 0% cloud 03:00 18.1 27 25 14 4B SW 0 0 1001 3060 Clear 0% cloud 06:00 17.2 29 26 14 4B SW 0 0 1001 3052 Clear 0% cloud 09:00 15.5 33 26 14 4B SW 0 0 1001 3038 Clear 0% cloud 12:00 14.9 33 23 13 4B SW 0 0 1001 3033 Clear 0% cloud 15:00 17.5 32 19 10 3B SW 0 0 1001 3042 Clear 0% cloud 18:00 21.6 25 23 13 4B SW 0 0 1000 3043 Clear 1% cloud 21:00 21.6 28 19 10 3B SW 0.18 0 999 3039 Partly cloudy 34% cloud Sunday, 11/10 00:00 17.6 39 11 6 2B SW 0.22 0 1000 3044 Cloudy 57% cloud 03:00 13.6 57 9 5 2B SW 0.17 0 1003 3050 Partly cloudy 31% cloud 06:00 12.3 58 13 7 3B S 0.01 0 1003 3048 Cloudy 52% cloud 09:00 11.4 60 8 4 2B W 0.00 0 1005 3043 Overcast 96% cloud 12:00 9.9 70 6 4 2B SW 0 0 1007 3044 Overcast 100% cloud 15:00 10.5 71 4 2 1B W 0.00 0 1009 3048 Overcast 96% cloud 18:00 12.9 65 4 2 1B W 0.03 0 1008 3050 Overcast 86% cloud 21:00 11.9 69 1 1 0B E 0.11 0 1008 3042 Overcast 89% cloud Monday, 12/10 00:00 8.8 86 9 5 2B SE 0.19 0 1009 3043 Overcast 95% cloud 03:00 7.4 94 13 7 3B S 0.31 0 1010 3056 Overcast 100% cloud 06:00 7.6 92 15 8 3B S 0.81 0 1009 3050 Cloudy 74% cloud 09:00 7.7 87 13 7 3B S 0.06 0 1008 3043 Partly cloudy 42% cloud 12:00 7.4 88 11 6 2B S 0.02 0 1008 3039 Cloudy 52% cloud 15:00 9 82 10 5 2B S 0.01 0 1008 3043 Cloudy 65% cloud 18:00 11.9 67 13 7 3B W 0.08 0 1008 3046 Overcast 84% cloud 21:00 11 74 15 8 3B W 0.03 0 1009 3046 Overcast 96% cloud Tuesday, 13/10 00:00 5.9 93 14 7 3B NW 0.37 0 1015 3059 Overcast 100% cloud 03:00 4.3 89 13 7 3B NW 0.15 0 1018 3071 Overcast 100% cloud 06:00 4.7 89 7 4 2B W 0.24 0 1017 3076 Overcast 84% cloud 09:00 4 92 9 5 2B W 0.04 0 1017 3077 Overcast 97% cloud 12:00 4 96 7 4 2B S 2.3 0 1017 3079 Overcast 92% cloud 15:00 5.5 93 7 4 2B S 0.06 0 1018 3087 Overcast 86% cloud 18:00 9 78 3 2 1B SE 0.21 0 1016 3087 Overcast 94% cloud 21:00 8.6 78 3 2 1B SE 0.26 0 1016 3081 Overcast 99% cloud Wednesday, 14/10 00:00 7.6 79 2 1 1B E 0.02 0 1017 3090 Cloudy 73% cloud 03:00 5.6 90 4 2 1B SW 0.00 0 1019 3105 Cloudy 61% cloud 06:00 5.9 90 2 1 1B W 0 0 1020 3112 Overcast 96% cloud 09:00 5 92 2 1 1B NW 0 0 1021 3117 Cloudy 70% cloud 12:00 6.1 89 2 1 1B NE 0 0 1022 3122 Overcast 98% cloud 15:00 6.9 83 5 3 1B E 0.01 0 1024 3135 Overcast 100% cloud 18:00 9 72 10 5 2B SE 0 0 1024 3140 Overcast 94% cloud 21:00 10.5 64 13 7 3B SE 0.01 0 1022 3134 Overcast 86% cloud Thursday, 15/10 00:00 8.2 70 12 6 2B SE 0 0 1023 3138 Overcast 93% cloud 03:00 6.4 75 12 7 2B SE 0.01 0 1024 3150 Cloudy 69% cloud 06:00 5.2 83 12 6 2B S 0.03 0 1025 3154 Overcast 94% cloud 09:00 5.5 94 7 4 2B S 4.4 0 1024 3156 Partly cloudy 47% cloud 12:00 4.9 94 2 1 1B S 0.13 0 1025 3156 Overcast 95% cloud 15:00 7 94 4 2 1B S 0.35 0 1027 3166 Overcast 86% cloud 18:00 10.9 70 3 2 1B S 0.00 0 1026 3174 Overcast 85% 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: 44.3280376°N, -103.8348371°E · Requested elevation: 2131 m. Model terrain: 1660 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) 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 18.9 23 29 15 4B SW — — 1006 3092 Clear 16% cloud 21:00 20 24 29 15 4B SW 0 0 1002 3073 Partly cloudy 39% cloud Saturday, 10/10 00:00 17.4 30 28 15 4B SW 0 0 1001 3063 Clear 0% cloud 03:00 16.3 28 36 19 5B SW 0 0 1001 3060 Clear 0% cloud 06:00 15.5 30 35 19 5B SW 0 0 1001 3052 Clear 0% cloud 09:00 13.9 34 34 19 5B SW 0 0 1001 3038 Clear 0% cloud 12:00 13.3 33 28 15 4B W 0 0 1001 3033 Clear 0% cloud 15:00 15.2 32 24 13 4B W 0 0 1002 3042 Clear 0% cloud 18:00 18.4 27 28 15 4B SW 0 0 1000 3043 Clear 1% cloud 21:00 18.4 32 25 13 4B SW 0.19 0 999 3039 Partly cloudy 33% cloud Sunday, 11/10 00:00 15.5 40 19 10 3B SW 0.22 0 1000 3044 Cloudy 59% cloud 03:00 12.2 56 17 9 3B SW 0.18 0 1003 3050 Partly cloudy 29% cloud 06:00 11.5 55 21 11 4B SW 0.01 0 1003 3048 Cloudy 54% cloud 09:00 10.5 59 15 8 3B SW 0.00 0 1005 3043 Overcast 96% cloud 12:00 8.9 72 15 8 3B SW 0 0 1007 3044 Overcast 100% cloud 15:00 9.3 70 11 6 2B SW 0.00 0 1008 3048 Overcast 96% cloud 18:00 10.9 68 10 6 2B SW 0.03 0 1008 3050 Overcast 85% cloud 21:00 10.2 72 9 5 2B SW 0.11 0 1008 3042 Overcast 89% cloud Monday, 12/10 00:00 8.3 83 17 9 3B S 0.20 0 1009 3043 Overcast 94% cloud 03:00 7.4 89 26 14 4B S 0.30 0 1010 3056 Overcast 100% cloud 06:00 7.7 85 26 14 4B SW 0.79 0 1008 3050 Cloudy 71% cloud 09:00 8.1 80 25 13 4B S 0.06 0 1008 3043 Partly cloudy 39% cloud 12:00 7.4 81 21 12 4B SW 0.02 0 1008 3039 Partly cloudy 48% cloud 15:00 8.2 81 21 11 4B SW 0.01 0 1008 3043 Cloudy 63% cloud 18:00 10.2 71 25 13 4B W 0.08 0 1008 3046 Overcast 83% cloud 21:00 9 78 28 15 4B W 0.03 0 1009 3046 Overcast 96% cloud Tuesday, 13/10 00:00 5.3 90 21 11 4B W 0.35 0 1015 3059 Overcast 100% cloud 03:00 4.3 79 22 12 4B W 0.14 0 1018 3071 Overcast 100% cloud 06:00 4.5 82 16 9 3B W 0.25 0 1017 3076 Overcast 82% cloud 09:00 4.1 87 18 10 3B W 0.04 0 1016 3077 Overcast 97% cloud 12:00 4 91 15 8 3B SW 2.4 0 1017 3079 Overcast 92% cloud 15:00 5 90 14 8 3B SW 0.06 0 1017 3087 Overcast 83% cloud 18:00 7.7 81 9 5 2B S 0.21 0 1016 3087 Overcast 93% cloud 21:00 7.2 81 4 2 1B SW 0.28 0 1015 3081 Overcast 99% cloud Wednesday, 14/10 00:00 6.4 81 3 2 1B W 0.02 0 1017 3090 Cloudy 73% cloud 03:00 5 88 6 4 2B SW 0.00 0 1019 3105 Cloudy 64% cloud 06:00 5 90 4 2 1B W 0 0 1020 3112 Overcast 96% cloud 09:00 4.5 89 4 2 1B W 0 0 1021 3117 Cloudy 73% cloud 12:00 5.3 87 1 1 0B NE 0 0 1022 3122 Overcast 98% cloud 15:00 6 80 6 3 2B E 0.01 0 1024 3135 Overcast 100% cloud 18:00 7.4 73 13 7 3B SE 0 0 1024 3140 Overcast 94% cloud 21:00 8.4 69 17 9 3B SE 0.01 0 1022 3134 Overcast 87% cloud Thursday, 15/10 00:00 6.8 76 14 8 3B SE 0 0 1023 3138 Overcast 93% cloud 03:00 5.6 78 13 7 3B S 0.01 0 1024 3150 Cloudy 68% cloud 06:00 4.7 83 13 7 3B S 0.03 0 1025 3154 Overcast 94% cloud 09:00 4.7 92 10 5 2B S 4.3 0 1024 3156 Partly cloudy 45% cloud 12:00 4.4 92 5 3 1B SE 0.13 0 1025 3156 Overcast 95% cloud 15:00 5.9 93 9 5 2B S 0.35 0 1027 3166 Overcast 87% cloud 18:00 8.8 75 8 4 2B S 0.00 0 1026 3173 Overcast 87% cloud |
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