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 11 86 6 3 2B S — — 1013 3105 Clear 2% cloud 09:00 10.8 83 9 5 2B SW 0 0 1013 3091 Partly cloudy 34% cloud 12:00 12.7 94 11 6 2B S 0 0 1012 3084 Overcast 98% cloud 15:00 16.6 91 13 7 3B S 1.0 0 1011 3075 Overcast 100% cloud 18:00 17.5 94 16 9 3B SW 3.2 0 1009 3062 Overcast 89% cloud 21:00 17.7 90 14 8 3B S 0.72 0 1009 3057 Partly cloudy 42% cloud Friday, 06/11 00:00 16.5 95 14 7 3B S 0.18 0 1009 3060 Partly cloudy 45% cloud 03:00 16.3 94 11 6 2B SW 0.26 0 1010 3059 Overcast 96% cloud 06:00 15.7 95 9 5 2B SW 0.69 0 1010 3052 Overcast 100% cloud 09:00 13 96 6 3 1B W 0.38 0 1011 3050 Cloudy 67% cloud 12:00 10.8 95 3 2 1B W 0.03 0 1013 3054 Overcast 97% cloud 15:00 15.7 67 4 2 1B W 0 0 1012 3052 Cloudy 55% cloud 18:00 18.9 49 5 3 1B W 0 0 1011 3041 Partly cloudy 22% cloud 21:00 16.3 62 7 4 2B NW 0 0 1011 2995 Partly cloudy 40% cloud Saturday, 07/11 00:00 11.6 76 8 4 2B N 0 0 1012 3038 Overcast 83% cloud 03:00 11.2 78 9 5 2B N 0 0 1012 2907 Overcast 100% cloud 06:00 10.4 82 7 4 2B NE 0.00 0 1012 2718 Cloudy 74% cloud 09:00 10.4 83 8 4 2B NE 0.00 0 1011 2804 Cloudy 71% cloud 12:00 9.9 85 10 6 2B NE 0.03 0 1011 2652 Cloudy 54% cloud 15:00 12 74 9 5 2B NE 0.04 0 1011 2609 Overcast 99% cloud 18:00 13.5 69 9 5 2B E 0.07 0 1008 2576 Overcast 100% cloud 21:00 12.2 77 4 2 1B SE 0.07 0 1007 2473 Overcast 100% cloud Sunday, 08/11 00:00 9.9 93 5 3 1B SE 1.9 0 1008 2270 Overcast 100% cloud 03:00 8.2 95 3 2 1B SE 2.6 0 1007 2077 Overcast 100% cloud 06:00 7.5 95 6 3 2B W 6.5 0 1006 1820 Overcast 100% cloud 09:00 4.5 95 16 9 3B NW 2.7 0 1007 1719 Overcast 100% cloud 12:00 3.6 93 19 10 3B NW 0.41 0 1009 1562 Overcast 93% cloud 15:00 6.5 75 18 10 3B NW 0 0 1009 1512 Overcast 94% cloud 18:00 7.7 74 18 10 3B W 0 0 1007 1348 Overcast 99% cloud 21:00 8.9 63 20 11 3B W 0.08 0 1005 1501 Partly cloudy 23% cloud Monday, 09/11 00:00 6.8 64 15 8 3B W 0 0 1005 1503 Overcast 93% cloud 03:00 7 73 20 11 3B W 0.07 0 1004 1403 Overcast 97% cloud 06:00 5.6 93 15 8 3B W 0.53 0 1003 1370 Overcast 97% cloud 09:00 5.6 94 17 9 3B W 0.59 0 1004 1300 Overcast 94% cloud 12:00 5.4 93 17 9 3B W 0.86 0 1005 1229 Overcast 99% cloud 15:00 5.6 88 18 10 3B W 1.2 0 1006 1163 Overcast 92% cloud 18:00 7.2 70 21 12 4B NW 0.47 0 1007 1173 Overcast 94% cloud 21:00 6.5 64 21 12 4B W 0.03 0 1009 1124 Overcast 97% cloud Tuesday, 10/11 00:00 5 67 20 11 4B W 0.07 0 1011 1032 Overcast 93% cloud 03:00 4.4 71 17 9 3B W 0 0 1012 1035 Cloudy 73% cloud 06:00 4.4 74 18 10 3B W 0 0 1012 1084 Overcast 86% cloud 09:00 3.6 78 16 9 3B W 0 0 1012 1374 Overcast 85% cloud 12:00 3.4 78 15 8 3B W 0 0 1012 2021 Overcast 91% cloud 15:00 6.3 71 18 10 3B W 0 0 1012 1393 Overcast 99% cloud 18:00 8.6 62 15 8 3B W 0.02 0 1008 1580 Overcast 84% cloud 21:00 8.8 63 14 8 3B SW 0.08 0 1007 1568 Overcast 94% cloud Wednesday, 11/11 00:00 7.5 84 19 10 3B W 0.37 0 1008 1639 Cloudy 65% cloud 03:00 7.1 87 19 10 3B W 0.17 0 1008 1557 Cloudy 66% cloud 06:00 5.8 88 18 10 3B W 0.15 0 1009 1551 Cloudy 53% cloud |
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Forecast table times: UTC.
Coordinates: 43.4222994°N, -72.7182889°E · Requested elevation: 353 m. Model terrain: 517 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.

Okemo Mountain is a downhill ski area in Vermont, United States. Mapped terrain includes beginner, easy, intermediate, advanced, expert, freeride routes. Its mapped lift network extends from approximately 353 to 1013 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 10.5 88 6 3 2B S — — 1013 3105 Clear 3% cloud 09:00 10.4 85 9 5 2B SW 0 0 1013 3091 Partly cloudy 33% cloud 12:00 12.3 95 11 6 2B S 0 0 1012 3084 Overcast 98% cloud 15:00 16.2 93 13 7 3B S 1.1 0 1011 3075 Overcast 100% cloud 18:00 17.2 96 16 9 3B SW 3.2 0 1009 3062 Overcast 89% cloud 21:00 17.3 92 14 8 3B S 0.74 0 1009 3058 Partly cloudy 43% cloud Friday, 06/11 00:00 16.1 96 14 7 3B S 0.18 0 1009 3061 Partly cloudy 46% cloud 03:00 15.9 95 11 6 2B SW 0.25 0 1010 3059 Overcast 95% cloud 06:00 15.3 97 8 5 2B SW 0.69 0 1010 3052 Overcast 100% cloud 09:00 12.8 97 6 3 1B W 0.40 0 1011 3050 Cloudy 67% cloud 12:00 10.4 97 3 2 1B W 0.04 0 1013 3055 Overcast 97% cloud 15:00 15.4 68 4 2 1B W 0 0 1012 3052 Cloudy 57% cloud 18:00 18.6 49 5 3 1B SW 0 0 1011 3041 Partly cloudy 23% cloud 21:00 16 62 7 4 2B NW 0 0 1011 2997 Partly cloudy 39% cloud Saturday, 07/11 00:00 11.2 78 8 4 2B N 0 0 1012 3038 Overcast 85% cloud 03:00 10.9 79 9 5 2B N 0 0 1012 2921 Overcast 100% cloud 06:00 10.1 84 7 4 2B NE 0.01 0 1012 2723 Cloudy 76% cloud 09:00 10.1 85 8 4 2B NE 0.01 0 1011 2808 Cloudy 67% cloud 12:00 9.5 87 10 6 2B NE 0.03 0 1011 2659 Cloudy 58% cloud 15:00 11.5 76 9 5 2B NE 0.05 0 1011 2612 Overcast 99% cloud 18:00 13.1 70 10 5 2B E 0.07 0 1008 2580 Overcast 100% cloud 21:00 11.8 78 4 2 1B SE 0.08 0 1007 2472 Overcast 100% cloud Sunday, 08/11 00:00 9.6 95 5 3 1B SE 1.9 0 1008 2267 Overcast 100% cloud 03:00 7.7 97 3 2 1B SE 2.7 0 1007 2073 Overcast 100% cloud 06:00 7.1 97 6 3 1B W 6.0 0 1006 1819 Overcast 100% cloud 09:00 4.2 97 16 9 3B NW 2.7 0 1007 1719 Overcast 100% cloud 12:00 3.2 95 19 10 3B NW 0.42 0 1009 1566 Overcast 93% cloud 15:00 6.1 77 18 10 3B NW 0 0 1009 1525 Overcast 94% cloud 18:00 7.5 74 19 10 3B W 0 0 1007 1353 Overcast 99% cloud 21:00 8.5 65 20 11 3B W 0.07 0 1005 1509 Partly cloudy 22% cloud Monday, 09/11 00:00 6.4 65 15 8 3B W 0 0 1005 1509 Overcast 92% cloud 03:00 6.6 74 20 11 3B W 0.08 0 1004 1408 Overcast 97% cloud 06:00 5.3 94 15 8 3B W 0.49 0 1003 1375 Overcast 97% cloud 09:00 5.3 95 18 9 3B W 0.56 0 1004 1301 Overcast 93% cloud 12:00 5.1 94 17 9 3B W 0.80 0 1005 1232 Overcast 99% cloud 15:00 5.3 89 18 10 3B W 1.2 0 1006 1164 Overcast 92% cloud 18:00 6.8 71 21 12 4B NW 0.49 0 1007 1172 Overcast 93% cloud 21:00 6.2 65 21 12 4B W 0.04 0 1009 1125 Overcast 97% cloud Tuesday, 10/11 00:00 4.7 68 20 11 4B W 0.07 0 1011 1034 Overcast 92% cloud 03:00 4 72 17 9 3B W 0 0 1012 1036 Cloudy 73% cloud 06:00 4 75 18 10 3B W 0 0 1012 1093 Overcast 84% cloud 09:00 3.2 79 16 9 3B W 0 0 1012 1466 Overcast 83% cloud 12:00 3 80 15 8 3B W 0 0 1012 2042 Overcast 91% cloud 15:00 6 72 18 10 3B W 0 0 1012 1422 Overcast 99% cloud 18:00 8.2 63 15 8 3B W 0.02 0 1008 1595 Overcast 83% cloud 21:00 8.4 64 14 8 3B SW 0.09 0 1007 1572 Overcast 93% cloud Wednesday, 11/11 00:00 7.1 86 19 10 3B W 0.36 0 1008 1643 Cloudy 66% cloud 03:00 6.8 89 19 10 3B W 0.15 0 1008 1565 Cloudy 63% cloud 06:00 5.5 90 18 10 3B W 0.13 0 1009 1573 Cloudy 53% cloud |
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Forecast table times: UTC.
Coordinates: 43.4027553°N, -72.719542°E · Requested elevation: 420 m. Model terrain: 514 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 16.5 48 32 17 5B SW — — 1013 3105 Clear 2% cloud 09:00 14.2 62 46 25 6B SW 0 0 1013 3091 Partly cloudy 32% cloud 12:00 13.1 88 46 25 6B SW 0.00 0 1012 3084 Overcast 99% cloud 15:00 13.7 95 49 27 6B SW 1.1 0 1011 3075 Overcast 100% cloud 18:00 14.1 95 47 25 6B SW 3.3 0 1009 3062 Overcast 89% cloud 21:00 14.6 93 43 23 6B SW 0.74 0 1009 3057 Partly cloudy 43% cloud Friday, 06/11 00:00 14.3 94 48 26 6B SW 0.20 0 1009 3061 Partly cloudy 47% cloud 03:00 13.4 97 42 23 6B SW 0.27 0 1010 3059 Overcast 97% cloud 06:00 12.8 96 33 18 5B W 0.73 0 1010 3052 Overcast 100% cloud 09:00 10.7 87 27 15 4B W 0.39 0 1011 3050 Cloudy 75% cloud 12:00 10 77 22 12 4B W 0.05 0 1013 3054 Overcast 97% cloud 15:00 10.3 71 16 9 3B SW 0 0 1013 3052 Cloudy 56% cloud 18:00 12.3 65 11 6 2B SW 0 0 1011 3040 Clear 19% cloud 21:00 12.1 67 5 3 1B NW 0 0 1011 2978 Partly cloudy 39% cloud Saturday, 07/11 00:00 10.9 69 14 8 3B NE 0 0 1012 3038 Overcast 82% cloud 03:00 9.8 78 20 11 4B NE 0 0 1012 2910 Overcast 100% cloud 06:00 9.4 82 20 11 3B E 0 0 1012 2718 Cloudy 72% cloud 09:00 8.4 89 24 13 4B E 0 0 1011 2804 Cloudy 63% cloud 12:00 7.7 91 28 15 4B E 0.00 0 1011 2661 Cloudy 52% cloud 15:00 7.5 90 22 12 4B E 0.05 0 1011 2607 Overcast 100% cloud 18:00 7.8 88 16 8 3B E 0.08 0 1008 2568 Overcast 100% cloud 21:00 7.5 92 7 4 2B E 0.10 0 1008 2472 Overcast 100% cloud Sunday, 08/11 00:00 5.9 99 10 6 2B SE 2.1 0 1008 2262 Overcast 100% cloud 03:00 4.6 98 5 3 1B E 2.7 0 1007 2067 Overcast 100% cloud 06:00 3.6 99 15 8 3B NW 5.8 0 1006 1819 Overcast 100% cloud 09:00 1.9 98 50 27 6B NW 2.7 0 1007 1721 Overcast 100% cloud 12:00 1.3 93 60 32 7B NW 0.41 0 1009 1554 Overcast 98% cloud 15:00 1.8 92 46 25 6B NW 0 0 1009 1517 Overcast 100% cloud 18:00 2.4 92 43 23 6B W 0.00 0 1007 1355 Overcast 100% cloud 21:00 3.5 79 46 25 6B W 0.07 0 1005 1524 Clear 18% cloud Monday, 09/11 00:00 3.2 71 52 28 7B W 0 0 1005 1506 Overcast 94% cloud 03:00 2.6 88 51 28 7B W 0.09 0 1004 1407 Overcast 97% cloud 06:00 2 98 50 27 6B W 0.55 0 1003 1374 Overcast 97% cloud 09:00 1.7 97 46 25 6B W 0.59 0 1004 1298 Overcast 94% cloud 12:00 1.3 97 44 24 6B W 0.89 0 1005 1224 Overcast 100% cloud 15:00 0.9 95 41 22 6B NW 1.3 0.4 1006 1156 Overcast 95% cloud 18:00 1.3 88 41 22 6B NW 0.54 0 1007 1171 Overcast 94% cloud 21:00 1 83 44 24 6B NW 0.05 0 1009 1123 Overcast 100% cloud Tuesday, 10/11 00:00 0.2 83 55 29 7B NW 0.07 0 1011 1034 Overcast 96% cloud 03:00 0.2 84 49 27 6B NW 0 0 1012 1037 Cloudy 77% cloud 06:00 0.4 80 44 24 6B NW 0 0 1012 1091 Overcast 87% cloud 09:00 0.7 75 41 22 6B W 0 0 1012 1441 Overcast 86% cloud 12:00 1.4 72 43 23 6B W 0 0 1012 2025 Overcast 92% cloud 15:00 1.5 80 37 20 5B W 0 0 1012 1368 Overcast 99% cloud 18:00 3.1 69 30 16 5B W 0 0 1008 1601 Overcast 85% cloud 21:00 3.9 79 44 24 6B W 0.09 0 1007 1578 Overcast 97% cloud Wednesday, 11/11 00:00 3.8 89 58 31 7B W 0.40 0 1008 1634 Cloudy 67% cloud 03:00 3.3 88 54 29 7B W 0.15 0 1008 1546 Cloudy 67% cloud 06:00 2.8 83 50 27 6B W 0.15 0 1009 1564 Cloudy 58% cloud |
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Forecast table times: UTC.
Coordinates: 43.4036023°N, -72.7512975°E · Requested elevation: 1013 m. Model terrain: 542 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.